JP7195222B2 - oily cosmetics - Google Patents

Description

The present disclosure relates to oily cosmetics.

Vitamin A is known to be an effective component for prevention and treatment of skin keratosis, prevention and recovery of skin aging, and the like. Among vitamins A, retinol is particularly effective in improving wrinkles, and is therefore often blended in cosmetics for the purpose of fundamentally improving wrinkles.

For example, Patent Document 1 discloses a cosmetic containing a specific amount of retinol, a specific amount of water-soluble antioxidant, and a specific amount of oil-soluble antioxidant.
Patent Document 2 discloses a cosmetic containing retinol and a water-swellable clay mineral.
Patent Document 3 discloses a cosmetic containing retinol and polyvinyl alcohol fine particles having a specific average particle size.
Patent Document 4 discloses a cosmetic in which a semi-solid dosage form containing an inulin fatty acid ester and a cyclic silicone is blended with vitamin A oil containing retinol and a powder raw material.

Japanese Patent Publication No. 2006-503000 JP-A-6-32721 JP 2010-143830 A JP 2005-104894 A

However, retinol is structurally extremely unstable and is easily isomerized, decomposed, polymerized, etc. by light, air, heat, metal ions, and the like. Therefore, it is difficult to stably contain retinol in cosmetics.
In conventional cosmetics, attempts have been made to ensure the stability of retinol, for example, by using retinol in combination with a specific antioxidant. Both ingredients contain ascorbic acid as an antioxidant. However, the stabilizing effect of retinol by ascorbic acid cannot be said to be sufficient.

On the other hand, with regard to wrinkles, in addition to the fundamental improvement effect of wrinkles by active ingredients such as retinol, the effect of reducing wrinkles by applying (for example, applying) to wrinkles (hereinafter referred to as “wrinkle hiding”) There is a demand for a cosmetic that can obtain the effect.

An object to be solved by one embodiment of the present invention is to provide an oil-based cosmetic that has excellent retinol stability and an excellent wrinkle-hiding effect.

Specific means for solving the above problems include the following embodiments.
[1] retinol;
at least one compound selected from the group consisting of ascorbic acid and salts of ascorbic acid;
spherical powder having a refractive index of 1.6 or less;
oil and
and
An oil-based cosmetic in which the content of spherical powder having a refractive index of 1.6 or less is 10% by mass or more and less than 50% by mass with respect to the total mass of the oil-based cosmetic.
[2] The oily cosmetic according to [1], wherein the retinol content is 0.001% by mass or more and 1% by mass or less relative to the total mass of the oily cosmetic.
[3] The oil-based cosmetic according to [1] or [2], wherein the total content of ascorbic acid and ascorbic acid salt is 0.002% by mass or more and 2% by mass or less with respect to the total mass of the oil-based cosmetic. .
[4] The spherical powder having a refractive index of 1.6 or less is at least one powder selected from the group consisting of silica, crosslinked silicone polymer, and crosslinked hydrocarbon polymer [1]-[ 3], the oily cosmetic composition according to any one of
[5] any one of [1] to [4], wherein the spherical powder having a refractive index of 1.6 or less is at least one powder selected from the group consisting of silica and crosslinked silicone polymers; The described oil-based cosmetic.
[6] The oil-based cosmetic according to any one of [1] to [5], wherein the spherical powder having a refractive index of 1.6 or less is silica powder.

According to one embodiment of the present invention, there is provided an oil-based cosmetic that has excellent retinol stability and an excellent wrinkle-hiding effect.

An example of an embodiment of an oily cosmetic to which the present invention is applied will be described below. However, the present invention is by no means limited to the following embodiments, and can be implemented with appropriate modifications within the scope of the purpose of the present invention.

In the present disclosure, a numerical range indicated using "to" means a range including the numerical values before and after "to" as the minimum and maximum values, respectively.
In the present disclosure, in the numerical ranges described in stages, the upper limit or lower limit described in a certain numerical range may be replaced with the upper limit or lower limit of another numerical range described in stages. Also, in the numerical ranges described in the present disclosure, the upper or lower limits of a certain numerical range may be replaced with the values shown in the examples.
In the present disclosure, a combination of two or more preferred aspects is a more preferred aspect.
In the present disclosure, when a plurality of substances corresponding to each component are present in the oil-based cosmetic, the amount of each component in the oil-based cosmetic is the amount of the plurality of substances present in the oil-based cosmetic, unless otherwise specified. means total volume.

In the present disclosure, the term "process" includes not only an independent process, but also if the intended purpose of the process is achieved even if it cannot be clearly distinguished from other processes. .

In this disclosure, "ascorbic acid and salts of ascorbic acid" may be collectively referred to as "ascorbic acid compounds."

[Oil-based cosmetics]
The oil-based cosmetic of the present disclosure comprises retinol, at least one compound selected from the group consisting of ascorbic acid and ascorbic acid salts (that is, ascorbic acid compounds), and spherical powder having a refractive index of 1.6 or less. (hereinafter also referred to as "specific powder") and an oil agent, and the content of spherical powder having a refractive index of 1.6 or less is 10 masses with respect to the total mass of the oily cosmetic. % or more and less than 50% by mass.
The oil-based cosmetic of the present disclosure has excellent retinol stability and an excellent wrinkle-hiding effect.
The reason why the oil-based cosmetic of the present disclosure can exhibit such effects is not clear, but the present inventors speculate as follows.

Since retinol is structurally very unstable, it is difficult to stably contain retinol in cosmetics. In conventional cosmetics, attempts have been made to ensure the stability of retinol by using retinol in combination with ascorbic acid, but it is difficult to say that the retinol stabilizing effect of ascorbic acid is sufficient.
On the other hand, since the oil-based cosmetic of the present disclosure contains the specific powder in addition to the ascorbic acid compound, it can contain retinol in a stable state. The reason for this is thought to be that the adsorption of retinol to the specific powder reduces the frequency of contact between retinol and oxygen or the like, making it more difficult for the stability of retinol to be impaired.

Since the specific powder is a powder with a refractive index of 1.6 or less, when the oil-based cosmetic of the present disclosure is applied (for example, applied) to a wrinkled part, the wrinkle is reduced due to the appropriate light scattering effect of the specific powder. can be visually blurred. In addition, since the specific powder has a spherical shape, it can satisfactorily fill wrinkles, which are depressions on the skin surface. It is thought that when the specific powder satisfactorily fills wrinkles, the wrinkle-hiding effect due to light scattering caused by the specific powder is exhibited more effectively. Furthermore, since the specific powder has a content of 10% by mass or more, it can satisfactorily fill relatively deep depressions such as wrinkles.
It is speculated that the oil-based cosmetic composition of the present disclosure can exhibit not only retinol stabilization but also an excellent wrinkle-hiding effect by containing a specific amount of such specific powder.

For the oil-based cosmetic of the present disclosure, the cosmetic described in Patent Document 1 (Japanese Patent Publication No. 2006-503000; hereinafter the same.) and the cosmetic described in Patent Document 2 (Japanese Patent Laid-Open No. 6-32721; hereinafter the same.) Although all of the described cosmetics contain ascorbic acid, they do not contain specific powders, so the stability of retinol cannot be ensured. In addition, the cosmetics described in Patent Document 1 and the cosmetics described in Patent Document 2 do not contain the specific powder, and therefore do not exhibit a wrinkle-hiding effect.

The cosmetic described in Patent Document 3 (Japanese Patent Application Laid-Open No. 2010-143830; hereinafter the same) is said to contain polyvinyl alcohol (PVA) fine particles to make pores inconspicuous. Since the content of fine particles is low, no wrinkle hiding effect can be expected. In addition, the cosmetic described in Patent Document 3 contains retinol, but does not contain an ascorbic acid compound, and does not focus on stabilizing retinol.

The cosmetic described in Patent Document 4 (Japanese Patent Application Laid-Open No. 2005-104894; hereinafter the same) contains retinol, but no attention is paid to the stabilization of retinol. In addition, the cosmetic described in Patent Document 4 contains ascorbyl tetrahexyldecanoate, which is an ascorbic acid derivative, but the ascorbic acid derivative does not have the effect of stabilizing retinol as does an ascorbic acid compound.

It should be noted that the above estimation is not intended to restrictively interpret the oil-based cosmetic composition of the present disclosure, but is explained as an example.

Each component of the oil-based cosmetic of the present disclosure will be described in detail below.

[Retinol]
The oily cosmetic of the present disclosure contains retinol.
In the oil-based cosmetic composition of the present disclosure, retinol can contribute to wrinkle improvement.

Retinol exists in cis and trans isomers.
Cis-retinol includes 9-cis-retinol, 11-cis-retinol, 13-cis-retinol and the like.
Trans-retinol includes all-trans-retinol.
The retinol may be either cis-type or trans-type retinol. For example, from the viewpoint of improving wrinkles, 13-cis-retinol, all-trans-retinol, or a mixture thereof is preferable, and all- trans-retinol is more preferred.

The oil-based cosmetic of the present disclosure may contain one type of retinol alone, or may contain two or more types of retinol.

The content of retinol in the oil-based cosmetic of the present disclosure is not particularly limited.
The content of retinol in the oily cosmetic of the present disclosure is, for example, preferably 0.001% by mass or more and 1% by mass or less, and 0.005% by mass or more and 0.5% by mass, based on the total mass of the oily cosmetic. It is more preferably not more than 0.01% by mass and even more preferably 0.01% by mass or more and 0.2% by mass or less.
When the content of retinol in the oil-based cosmetic of the present disclosure is 0.001% by mass or more with respect to the total mass of the oil-based cosmetic, an effect of improving wrinkles due to the inclusion of retinol can be expected.
When the content of retinol in the oil-based cosmetic of the present disclosure is 1% by mass or less with respect to the total mass of the oil-based cosmetic, skin irritation tends to occur less easily.

[Ascorbic acid compound]
The oil-based cosmetic of the present disclosure contains at least one compound selected from the group consisting of ascorbic acid and salts of ascorbic acid (that is, ascorbic acid compounds).
In the oil-based cosmetic composition of the present disclosure, the ascorbic acid compound may contribute to retinol stability.

Ascorbic acid may be any of D-, L-, and DL-forms, and L-form (so-called L-ascorbic acid) is preferred from the viewpoint of retinol stability.
Salts of ascorbic acid include sodium ascorbate, potassium ascorbate, calcium ascorbate and the like.

As the ascorbic acid compound, in the field of cosmetics or quasi-drugs, commercially available ingredients that can be applied to the skin can be suitably used.

The oil-based cosmetic of the present disclosure may contain one type of ascorbic acid compound alone, or two or more types thereof.

The content of ascorbic acid compounds (that is, the total content of ascorbic acid and salts of ascorbic acid; hereinafter the same) in the oil-based cosmetic of the present disclosure is not particularly limited.
The content of the ascorbic acid compound in the oil-based cosmetic of the present disclosure is preferably, for example, 0.002% by mass or more and 2% by mass or less with respect to the total mass of the oil-based cosmetic.
The fact that the content of the ascorbic acid compound in the oil-based cosmetic of the present disclosure is 0.002% by mass or more with respect to the total mass of the oil-based cosmetic is positively adding the ascorbic acid compound to the oil-based cosmetic of the present disclosure. means to contain
When the content of the ascorbic acid compound in the oil-based cosmetic of the present disclosure is 2% by mass or less with respect to the total mass of the oil-based cosmetic, skin irritation tends to occur less easily.

In addition, from the viewpoint of retinol stability and skin irritation, the content of the ascorbic acid compound in the oil-based cosmetic of the present disclosure is 0.01% by mass or more with respect to the total weight of the oil-based cosmetic. It is more preferably 2% by mass or less, and even more preferably 0.1% by mass or more and 2% by mass or less.

In the present disclosure, "content rate and content of ascorbic acid compound (that is, total content rate and total content of ascorbic acid and salts of ascorbic acid)" mean values converted to ascorbic acid. In addition, "ascorbic acid conversion" is calculated by adopting the mass of ascorbic acid itself, and adopting the mass of the partial structure derived from ascorbic acid contained in the ascorbic acid salt for the salt of ascorbic acid. means to

The ratio of the content of ascorbic acid compound (that is, the total content of ascorbic acid and salts of ascorbic acid; hereinafter the same) to the content of retinol in the oil-based cosmetic of the present disclosure is not particularly limited.
The ratio of the content of the ascorbic acid compound to the content of retinol in the oil-based cosmetic of the present disclosure (that is, the content of the ascorbic acid compound/the content of retinol) is preferably 0.1 or more on a mass basis. .
When the ratio of the content of the ascorbic acid compound to the content of retinol in the oil-based cosmetic of the present disclosure is 0.1 or more on a mass basis, the stability of retinol tends to increase.

If the ratio of the content of the ascorbic acid compound to the content of retinol in the oil-based cosmetic of the present disclosure is too high, it is conceivable that the oxidation of retinol is promoted by the decomposition product of the ascorbic acid compound that has decomposed over time. .
Considering such possibilities, the ratio of the content of the ascorbic acid compound to the content of retinol in the oil-based cosmetic of the present disclosure is more preferably 0.1 or more and 100 or less on a mass basis. It is more preferably 1 or more and 10 or less, and particularly preferably 1 or more and 10 or less.

[Specific powder]
The oil-based cosmetic of the present disclosure contains spherical powder (that is, specific powder) having a refractive index of 1.6 or less.
In the oil-based cosmetic composition of the present disclosure, the specific powder can contribute to the stability of retinol and the wrinkle-hiding effect.

The specific powder has a refractive index of 1.6 or less.
If the refractive index of the powder is too high, the light will be excessively scattered when applied (eg, applied) to the skin, resulting in a whiter appearance of the skin, which tends to make wrinkles stand out.
Since the specific powder has a refractive index of 1.6 or less, it is thought that wrinkles can be visually blurred by a suitable light scattering effect.
The refractive index of the specific powder is, for example, preferably 1.58 or less, more preferably 1.56 or less, and even more preferably 1.54 or less.
Although the lower limit of the refractive index of the specific powder is not particularly limited, it is preferably 1.34 or more, more preferably 1.37 or more, and even more preferably 1.40 or more.

In the present disclosure, the refractive index of powder is a value measured according to the B method (Pecke method) described in JIS K 7142:2014.

The specific powder is spherical powder.
Spherical powder includes not only spherical powder but also substantially spherical powder.
A preferable indicator of “spherical” is, for example, an aspect ratio of 1.0 to 1.5.
The spherical powder may have unevenness on its surface.
Since the specific powder has a spherical shape, it can satisfactorily fill wrinkles, which are depressions on the skin surface. It is thought that when the specific powder fills wrinkles satisfactorily, the wrinkle-hiding effect due to light scattering caused by the specific powder is exhibited more satisfactorily.
Since the oil-based cosmetic of the present disclosure contains powder having a specific refractive index and a spherical shape, it can exhibit an excellent wrinkle-hiding effect.

The particle size of the specific powder is not particularly limited.
The average particle size of the specific powder is, for example, preferably 0.1 μm or more and 100 μm or less, more preferably 0.5 μm or more and 60 μm or less.

In the present disclosure, the average particle size of powder refers to the volume average particle size (Mv), which is a value measured using a laser diffraction/scattering particle size distribution analyzer.
Partica LA-960 (product name) manufactured by HORIBA, Ltd., for example, can be suitably used as the laser diffraction/scattering particle size distribution analyzer. However, the laser diffraction/scattering particle size distribution analyzer is not limited to this.

The specific powder is preferably oil-absorbing powder.
When the specific powder is an oil-absorbing powder, retinol tends to be more stable.
"Oil-absorbing powder" means a powder capable of absorbing 5% by mass or more of refined linseed oil of its own weight at 25°C.
The oil absorption is measured according to JIS K 5101-13-1:2004.

The type of specific powder is not particularly limited as long as it is a spherical powder having a refractive index of 1.6 or less and is used in the field of cosmetics.
Specific powders include powders of inorganic compounds, crosslinked silicone polymers, crosslinked hydrocarbon polymers, and the like.
Specific examples of inorganic compounds include silica and calcium carbonate.
Specific examples of crosslinked silicone polymers include (dimethicone/vinyl dimethicone) crosspolymer, (dimethicone/phenyl vinyl dimethicone) crosspolymer, (vinyl dimethicone/lauryl dimethicone) crosspolymer, (lauryl polydimethylsiloxyethyl dimethicone/bis vinyl dimethicone). ) crosspolymer, polymethylsilsesquioxane, (vinyl dimethicone/methicone silsesquioxane) crosspolymer, polysilicone-1 crosspolymer, polysilicone-22, and the like.
Specific examples of crosslinked hydrocarbon polymers include crosslinked materials such as nylon, polyethylene, polymethylmethacrylate (PMMA), polyurethane, and polystyrene.

From the viewpoint of wrinkle-hiding effect, the specific powder is preferably at least one powder selected from the group consisting of silica, crosslinked silicone polymer, and crosslinked hydrocarbon polymer. It is more preferably at least one powder selected from the group consisting of, and from the viewpoint of retinol stability and wrinkle-hiding effect, silica powder is preferred.
The silica may be porous silica.

The specific powder may be spherical powder of the above type that has been surface-treated by a known method.

Commercially available products can be used as the specific powder.
Examples of commercial products of specific powders include KSP-100, KSP-101, KSP-102, and KSP-105 [(vinyl dimethicone/methicone silsesquioxane) crosspolymer of Shin-Etsu Chemical Co., Ltd., All are trade names], KSP-411 [Shin-Etsu Chemical Co., Ltd. polysilicone-1 crosspolymer, trade name], 9701 Cosmetic Powder [Dow Chemical Japan Co., Ltd. (dimethicone/vinyl dimethicone) crosspolymer, trade name] name], Matsumoto Microsphere (registered trademark) M-305, and M-306 [Methyl methacrylate crosspolymer manufactured by Matsumoto Yushi Pharmaceutical Co., Ltd., both trade names], Sunsphere (registered trademark) H-31 , H-51, H-121, H-201, and H-301 [above, silica of AGC Si Tech Co., Ltd., all trade names], SP-500, and SP-10 [above, Toray Industries, Inc. of nylon, all grade names], and the like.

The oil-based cosmetic of the present disclosure may contain one type of specific powder alone, or may contain two or more types thereof.

The content of the specific powder in the oil-based cosmetic of the present disclosure is 10% by mass or more and less than 50% by mass with respect to the total mass of the oil-based cosmetic.
When the content of the specific powder in the oil-based cosmetic of the present disclosure is 10% by mass or more with respect to the total mass of the oil-based cosmetic, an excellent wrinkle-hiding effect can be achieved.
When the content of the specific powder in the oil-based cosmetic of the present disclosure is less than 50% by mass with respect to the total weight of the oil-based cosmetic, for example, even if the specific powder is an oil-absorbing powder, the applicability is poor. hard to damage.
The content of the specific powder in the oil-based cosmetic of the present disclosure is preferably 15% by mass or more, and preferably 20% by mass or more, with respect to the total mass of the oil-based cosmetic, from the viewpoint of wrinkle-hiding effect. more preferred.
From the viewpoint of retinol stability, the content of the specific powder in the oil-based cosmetic of the present disclosure is preferably 45% by mass or less, and preferably 40% by mass or less, relative to the total mass of the oil-based cosmetic. is more preferable, 35% by mass or less is even more preferable, and 30% by mass or less is particularly preferable.
In terms of enhancing the stability of retinol and the wrinkle-hiding effect in a well-balanced manner, the content of the specific powder in the oil-based cosmetic of the present disclosure is 15% by mass or more and 35% by mass or less with respect to the total mass of the oil-based cosmetic. It is preferably 20% by mass or more and 30% by mass or less.

[Oil agent]
The oil-based cosmetic of the present disclosure contains an oil agent.
“Oil agent” means a component that has a solubility in water at 25° C. of less than 0.1% by mass (less than 1 g/L) and is generally used as an oil agent in the field of cosmetics.
The oil is not particularly limited as long as it is applicable to cosmetics.
The oil agent may be liquid, semi-solid, or solid, but is preferably liquid at 25° C., for example, from the viewpoint of suitability for production.
"Oil solution that is liquid at 25°C" means an oil solution that has a melting point or softening point of less than 25°C.

Examples of oils include ester oils, hydrocarbon oils, silicone oils, animal and vegetable oils and fats.
Specific examples of ester oils include cetyl ethylhexanoate (cosmetic ingredient labeling name: cetyl ethylhexanoate, quasi-drug ingredient labeling name: cetyl 2-ethylhexanoate; hereinafter the same), isotridecyl isononanoate, Isopropyl myristate, Isocetyl myristate, Octyldodecyl myristate, Isopropyl palmitate, Ethylhexyl palmitate (Cosmetic ingredient labeling name: Ethylhexyl palmitate, Quasi-drug ingredient labeling name: 2-Ethylhexyl palmitate), Butyl stearate , Ethylhexyl stearate (Cosmetic ingredient labeling name: Ethylhexyl stearate, Quasi-drug ingredient labeling name: 2-ethylhexyl stearate), isotridecyl stearate, methyl oleate, ethyl oleate, isobutyl oleate, triethylhexanoin , tri(caprylic/capric) glyceryl, diisopropyl adipate, and diethyl sebacate.
Specific examples of hydrocarbon oils include liquid paraffin, isoparaffin, petrolatum, paraffin wax, ceresin, microcrystalline wax, squalane and the like.
Specific examples of silicone oils include dimethicone, trisiloxane, cyclomethicone, cyclopentasiloxane, methyltrimethicone, caprylylmethicone, phenyltrimethicone, diphenyldimethicone, diphenylsiloxyphenyltrimethicone, and the like.
Specific examples of animal and vegetable oils and fats include avocado oil, almond oil, olive oil, cacao oil, sesame oil, wheat germ oil, safflower oil, shea butter, turtle oil, camellia oil, persic oil, castor oil, grape oil, macadamia nut oil, coconut oil. Oil, Japanese wax, rosehip oil, soybean oil, egg yolk oil, hydrogenated castor oil, hydrogenated coconut oil, hydrogenated cacao oil, hydrogenated turtle oil, hydrogenated mink oil, beef oil, mink oil, lanolin (so-called wool fat), etc. be done.

The oil agent is preferably a polar oil.
When the oil-based cosmetic composition of the present disclosure contains a polar oil as an oil agent, the stability of retinol can be further improved. The reason why retinol can be more stable with polar oil is not clear, but it is thought that the solubility of non-polar oxygen in polar oil is low, which suppresses the oxidative decomposition of retinol. guessed.
Polar oils include tri(caprylic/capric) glyceryl, ethyl oleate, isopropyl palmitate, cetyl ethylhexanoate, isotridecyl isononanoate, triethylhexanoin and the like.

The oil agent has a value obtained from the ratio of the organic value and the inorganic value [IOB (Inorganic Organic Balance) value; hereinafter referred to as "I/O value". ] is preferably 0.05 or more, more preferably 0.1 or more and 1.0 or less, and still more preferably 0.2 or more and 0.5 or less.
When the I/O value of the oil is 0.05 or more, the stability of retinol can be further improved.

The I/O value is well known as a ratio between an inorganic value (IV) and an organic value (OV) determined based on an organic conceptual diagram, and represents the degree of polarity of an oil. .
The I/O value is represented by the following formula (I). A higher I/O value indicates a higher polarity. The I/O value is explained in detail in "Organic Conceptual Diagram" (Yoshio Koda, Sankyo Publishing, 1984). Specifically, the I/O value is described in "Prediction of Organic Compounds and Organic Conceptual Diagram", Fujita (Kagaku no Ryoryo 11-10), 1957, p. 719-p. 725, "Emulsion formulation design based on organic conceptual diagram", Nippon Emulsion Co., Ltd., Yaguchi, 1985, p. 98].
I/O value = inorganic value (IV)/organic value (OV) (I)

In the present disclosure, reference values for the organic value (OV) and inorganic value (IV) used to calculate the I/O value are shown below.
Intramolecular carbon (OV: 20, IV: 0)
Carbon-carbon double bond (OV: 0, IV: 2)
Carbon-carbon triple bond (OV: 0, IV: 3)
Carbon chain branching (OV: -10, IV: 0)
COO (OV: 0, IV: 60)
-OH (OV: 0, IV: 100)
-O- (OV: 0, IV: 20)

Examples of oils having an I/O value of 0.05 or more include tri(caprylic/capric)glyceryl [I/O value = 0.33], ethyl oleate [I/O value = 0.16], palmitic Isopropyl acid [I/O value = 0.16], cetyl ethylhexanoate [I/O value = 0.13], isotridecyl isononanoate [I/O value = 0.15], triethylhexanoin [I/O value = 0.35].

The oil-based cosmetic of the present disclosure may contain one type of oil alone, or may contain two or more types.

The content of the oil agent in the oil-based cosmetic of the present disclosure is not particularly limited.
The content of the oil agent in the oil-based cosmetic of the present disclosure is preferably, for example, 45% by mass or more with respect to the total mass of the oil-based cosmetic.
When the content of the oil in the oil-based cosmetic of the present disclosure is 45% by mass or more with respect to the total mass of the oil-based cosmetic, even when the specific powder contained in the oil-based cosmetic has high oil absorption. , the oil-based cosmetic is less likely to become powdery, and the oil-based cosmetic can be applied well.

Depending on the type of oil, if the content is too high, the oil-based cosmetic may become sticky when applied to the skin, impairing the feeling of use.
Considering such possibilities, the content of the oil agent in the oil-based cosmetic of the present disclosure is more preferably 45% by mass or more and 85% by mass or less with respect to the total mass of the oil-based cosmetic, and 55% by mass. It is more preferably at least 85% by mass, still more preferably at least 55% by mass and not more than 75% by mass, and particularly preferably at least 65% by mass and not more than 75% by mass.

[Other ingredients]
The oil-based cosmetic of the present disclosure may optionally contain components other than retinol, ascorbic acid compounds, specific powders, and oils (so-called other components) within a range that does not impair the effects of the present disclosure. good.
Other components include water, additives commonly used in cosmetics, and the like.

<Water>
The oily cosmetic of the present disclosure may contain water.
Water is not particularly limited as long as it can be used for cosmetics.
Specific examples of water include natural water, purified water, distilled water, ion-exchanged water, pure water, and ultrapure water (eg, Milli-Q water).
Among these, purified water, distilled water, ion-exchanged water, pure water, or ultrapure water is preferable as water from the viewpoint of less impurities.

The content of water in the oil-based cosmetic of the present disclosure is not particularly limited.
The oil-based cosmetic of the present disclosure does not contain water, or has a water content of more than 0% by mass and 5% by mass with respect to the total mass of the oil-based cosmetic, for example, from the viewpoint of being more excellent in wrinkle-hiding effects. %, and does not contain water, or more preferably, the water content is more than 0% by mass and less than 3% by mass with respect to the total mass of the oily cosmetic, and contains water. It is more preferable that there is no water, or that the content of water is more than 0% by mass and less than 1% by mass with respect to the total mass of the oily cosmetic, and it is particularly preferable that it does not contain water.
In the present disclosure, "free of water" means substantially free of water. The expression "substantially free of water" means that the presence of water that is unavoidably mixed is allowed, but the presence of intentionally added water is not allowed.

<Additional ingredients>
The oil-based cosmetic of the present disclosure may contain additional ingredients.
Examples of additive components include functional components that exhibit useful cosmetic effects (moisturizing effect, whitening effect, skin conditioning effect, etc.) when used in cosmetics.
Examples of such functional ingredients include carotenoids such as β-carotene, astaxanthin, zeaxanthin, lycopene, and lutein; vitamin E such as tocopherol and tocotrienol; ubiquinone such as coenzyme Q10; hyaluronic acid, erythritol, xylitol, glucose, sorbitol, and trehalose. glycosphingolipids such as glucosylceramide and galactosylceramide; collagen such as hydrolyzed collagen and water-soluble collagen; amino acids such as acetylhydroxyproline; .
Other additives include preservatives, ultraviolet absorbers, anti-inflammatory agents, colorants, perfumes, and the like.
One of these additive components may serve two or more functions.

[Use of oily cosmetics]
The oil-based cosmetic of the present disclosure can be suitably used as cosmetics, quasi-drugs (so-called medicated cosmetics), and the like.

[Usage mode of oil-based cosmetic]
The mode of use of the oil-based cosmetic of the present disclosure is not particularly limited.
As a mode of use of the oil-based cosmetic composition of the present disclosure, for example, a mode of using it before base makeup is preferable in that the effect of hiding wrinkles can be exhibited more effectively.

[Form of oily cosmetic]
The form of the oily cosmetic of the present disclosure is not particularly limited.
Examples of the form of the oil-based cosmetic of the present disclosure include forms such as paste and cream.

[Method for producing oil-based cosmetic]
The method for producing the oil-based cosmetic of the present disclosure is not particularly limited, and known production methods can be applied.
An example of a suitable method for producing the oil-based cosmetic of the present disclosure will be described below. However, descriptions of items common to the oil-based cosmetic described above, such as the components of the oil-based cosmetic and their amounts, will be omitted.

The oil-based cosmetic of the present disclosure includes retinol, an ascorbic acid compound, a specific amount of specific powder (i.e., spherical powder having a refractive index of 1.6 or less), an oil agent, and, if necessary, the above-described and other components (hereinafter also referred to as “mixing step”).

Each component contained in the oily cosmetic may be simply mixed, and all components may be mixed at once, or each component may be divided into several and mixed.
The mixing means is not particularly limited, and known mixing means can be applied.
Examples of mixing means include known mixing means such as a mortar and pestle, a stirrer, and a kneader.

The temperature at which each component is mixed is preferably 60° C. or less from the viewpoint of suppressing thermal decomposition of retinol, and more preferably 4° C. to 50° C. from the viewpoint of production suitability. ~45°C is more preferred.
The time for mixing each component is not particularly limited as long as each component can be sufficiently mixed, and can be appropriately set, for example, according to the mixing means, the type of each component, and the like.

The method for producing the oil-based cosmetic of the present disclosure can optionally include steps other than the mixing step (so-called other steps).
Other steps include, for example, a defoaming step, a taking-out step, and the like.

Hereinafter, the oil-based cosmetic composition of the present disclosure will be described more specifically with reference to examples. However, the oil-based cosmetic composition of the present disclosure is not limited to the following examples as long as it does not exceed its gist.

[Test Example 1]
[Preparation of oily cosmetics]
(Example 1-1)
An oil-based cosmetic was prepared by the following method in an environment with an ambient temperature of 25°C.
15.986 g of tri(caprylic/capric)glyceryl oil was placed in a mortar. Next, 0.01 g of retinol, 0.004 g of ascorbic acid, and 4.00 g of silica, which is a specific powder (shape: spherical, refractive index: 1.44 to 1.50), were added to the above oil solution in a mortar. After the addition, the oil-based cosmetic of Example 1-1 was obtained by mixing using a pestle.

(Example 1-2)
In the preparation of the oil-based cosmetic of Example 1-1, the amount of ascorbic acid was changed from "0.004 g" to "0.04 g", and tri(caprylic/capric) glyceryl oil was added. Except for changing the amount from "15.986 g" to "15.95 g", the same operation as in Example 1-1 was performed to obtain an oily cosmetic of Example 1-2.

(Comparative Example 1-1)
In the preparation of the oil-based cosmetic of Example 1-1, ascorbic acid was not blended, and the blending amount of tri(caprylic/capric)glyceryl oil was changed from "15.986 g" to "15.99 g". Except for the change, the same operations as in Example 1-1 were performed to obtain an oily cosmetic of Comparative Example 1-1.

(Comparative Example 1-2)
In the preparation of the oil-based cosmetic of Example 1-1, the same operation as in Example 1-1 was performed, except that ascorbyl tetrahexyldecanoate, which is an ascorbic acid derivative, was blended instead of blending ascorbic acid. An oily cosmetic of Example 1-2 was obtained.

(Comparative Example 1-3)
In the preparation of the oil-based cosmetic of Example 1-2, the same operation as in Example 1-2 was performed, except that ascorbyl tetrahexyldecanoate, which is an ascorbic acid derivative, was blended instead of blending ascorbic acid. An oily cosmetic of Example 1-3 was obtained.

〔evaluation〕
Each of the oil-based cosmetics of Examples 1-1, 1-2, and Comparative Examples 1-1 to 1-3 was evaluated. Table 1 shows the results.

1. Retinol Stability Each oil-based cosmetic was evaluated for retinol stability.
1 g of the oil-based cosmetic immediately after preparation was placed in a 20-mL glass container under an environment of an atmospheric temperature of 50°C. Next, the container containing the oil-based cosmetic was left in an environment with an ambient temperature of 50° C. for one day (that is, 24 hours) while the oil-based cosmetic was in contact with air. Next, the amount of retinol contained in the oil-based cosmetic after standing was quantified, and the percentage of retinol contained in the oil-based cosmetic before standing was taken as 100, that is, the retinol residual rate (unit: %) was calculated. . In addition, quantification of retinol was performed by an absorbance measurement method using ethanol as a solvent and a measurement wavelength of 325 nm. Retinol absorption coefficient (E1%, 1 cm) = 1835 was used for calculation.
Then, the stability of retinol was evaluated according to the following evaluation criteria based on the calculated residual rate of retinol.
In the following evaluation criteria, "A" is the most excellent retinol stability.

-Evaluation criteria-
A: Retinol residual rate is 90% or more.
B: Residual rate of retinol is 50% or more and less than 90%.
C: Retinol residual rate is less than 50%.

2. Wrinkle-Hiding Effect Each oil-based cosmetic was evaluated for wrinkle-hiding effect.
Five panelists specializing in cosmetic evaluation were asked to apply the oily cosmetic to wrinkled areas of the skin. Then, after application, the skin was observed for its appearance, and it was determined whether or not wrinkles were reduced. Then, based on the determination results, the wrinkle-hiding effect was evaluated according to the following evaluation criteria.
In the following evaluation criteria, "A" is the most excellent wrinkle-hiding effect.

-Evaluation criteria-
A: The number of expert panelists who determined that wrinkles were reduced was 3 or more.
B: One or two expert panelists determined that wrinkles were reduced.
C: The number of expert panelists who determined that wrinkles were reduced was zero.

In Table 1, "-" described in the composition column means that the corresponding component is not included.
In Table 1, for convenience, the components corresponding to retinol, ascorbic acid compound, specific powder, and oil are classified into (A), (B), (C), and (D), respectively.

Details of each component listed in Table 1 are as follows.
<(A): Retinol>
・Retinol [trade name: Retinol synthetic, ingredient name: all-trans-retinol, Sigma Aldrich]
<(B): Ascorbic acid compound>
・Ascorbic acid [trade name: L(+)-ascorbic acid, component name: L-ascorbic acid, FUJIFILM Wako Pure Chemical Industries, Ltd.]
<(C): Specific powder>
・Silica [trade name: Sunsphere (registered trademark) H-31, shape: spherical, refractive index: 1.44 to 1.50, AGC Si Tech Co., Ltd.]
<(D): Oil>
・Tri (caprylic/capric) glyceryl [trade name: TCG-M, ester oil, polar oil (I/O value: 0.33), KOKYU ALCOHOL KOGYO Co., Ltd.]
<Others>
・Ascorbyl tetrahexyldecanoate [trade name: NIKKOL (registered trademark) VC-IP, ascorbic acid derivative, Nikko Chemicals Co., Ltd.]

As shown in Table 1, both the oily cosmetics of Examples 1-1 and 1-2, which contain retinol, an ascorbic acid compound, a specific amount of specific powder, and an oil, have excellent retinol stability. was In addition, both the oil-based cosmetics of Examples 1-1 and 1-2 were excellent in wrinkle-hiding effect.
On the other hand, the oil-based cosmetic of Comparative Example 1-1 containing no ascorbic acid compound was inferior in retinol stability to the oil-based cosmetic of Examples.
The oil-based cosmetics of Comparative Examples 1-2 and 1-3, which contain an ascorbic acid derivative instead of an ascorbic acid compound, are inferior in retinol stability to the oil-based cosmetics of Examples. rice field.

[Test Example 2]
[Preparation of oily cosmetics]
(Example 2-1)
An oil-based cosmetic was prepared by the following method in an environment with an ambient temperature of 25°C.
17.95 g of tri(caprylic/capric)glyceryl oil was placed in a mortar. Next, 0.01 g of retinol, 0.04 g of ascorbic acid, and 2.00 g of silica, which is a specific powder (shape: spherical, refractive index: 1.44 to 1.50), were added to the above oil solution in a mortar. After the addition, the oily cosmetic of Example 2-1 was obtained by mixing using a pestle.

(Example 2-2)
In the preparation of the oil-based cosmetic of Example 2-1, the amount of silica, which is a specific powder, was changed from "2.00 g" to "4.00 g", and tri(caprylic acid/capric acid), which is an oil agent ) An oily cosmetic of Example 2-2 was obtained in the same manner as in Example 2-1, except that the amount of glyceryl was changed from "17.95 g" to "15.95 g".
The oil-based cosmetic of Example 2-2 has the same composition as the oil-based cosmetic of Example 1-2.

(Example 2-3)
In the preparation of the oil-based cosmetic of Example 2-1, the amount of silica, which is a specific powder, was changed from "2.00 g" to "6.00 g", and tri(caprylic acid/capric acid), which is an oil agent ) An oily cosmetic of Example 2-3 was obtained in the same manner as in Example 2-1, except that the amount of glyceryl was changed from "17.95 g" to "13.95 g".

(Example 2-4)
In the preparation of the oil-based cosmetic of Example 2-1, the amount of silica, which is a specific powder, was changed from "2.00 g" to "8.00 g", and tri(caprylic acid/capric acid), which is an oil agent ) An oily cosmetic of Example 2-4 was obtained in the same manner as in Example 2-1, except that the amount of glyceryl was changed from "17.95 g" to "11.95 g".

(Comparative Example 2-1)
In the preparation of the oil-based cosmetic of Example 2-1, silica, which is a specific powder, was not blended, and the blending amount of tri(caprylic/capric) glyceryl, which is an oil agent, was changed from "17.95 g" to "19 An oil-based cosmetic of Comparative Example 2-1 was obtained by performing the same operation as in Example 2-1, except that the content was changed to 0.95 g.

(Comparative Example 2-2)
In the preparation of the oil-based cosmetic of Example 2-1, the amount of silica, which is a specific powder, was changed from "2.00 g" to "1.00 g", and tri(caprylic acid/capric acid), which is an oil agent ) Except for changing the amount of glyceryl from “17.95 g” to “18.95 g”, the same operation as in Example 2-1 was performed to obtain an oily cosmetic of Comparative Example 2-2.

(Comparative Example 2-3)
In the preparation of the oil-based cosmetic of Example 2-1, the amount of silica, which is a specific powder, was changed from "2.00 g" to "10.00 g", and tri(caprylic acid/capric acid), which is an oil agent ) An oily cosmetic of Comparative Example 2-3 was obtained in the same manner as in Example 2-1, except that the amount of glyceryl was changed from "17.95 g" to "9.95 g".

[evaluation]
Each of the oil-based cosmetics of Examples 2-1 to 2-4 and Comparative Examples 2-1 to 2-3 was evaluated. Table 2 shows the results.
The oil-based cosmetic composition of Comparative Example 2-3 was powdery, making it difficult to apply it well, so it was not possible to evaluate “2. wrinkle-hiding effect”.

1. Retinol Stability Each oil-based cosmetic was evaluated for retinol stability.
The details of the evaluation test, evaluation criteria, etc. are the same as those of the evaluation test, evaluation criteria, etc. in "1. Stability of retinol" in [Evaluation] of [Test Example 1], so descriptions thereof are omitted here.

2. Wrinkle-Hiding Effect Each oil-based cosmetic was evaluated for wrinkle-hiding effect.
The details of the evaluation test, evaluation criteria, etc. are the same as those of the evaluation test, evaluation criteria, etc. in "2. Wrinkle concealing effect" in [Evaluation] of [Test Example 1], so description thereof is omitted here.

In Table 2, for convenience, the components corresponding to retinol, ascorbic acid compound, specific powder, and oil are classified into (A), (B), (C), and (D), respectively.
In Table 2, "-" described in the composition column means that the corresponding component is not included.

Details of each component listed in Table 2 are as follows.
<(A): Retinol>
・Retinol [trade name: Retinol synthetic, ingredient name: all-trans-retinol, Sigma Aldrich]
<(B): Ascorbic acid compound>
・Ascorbic acid [trade name: L(+)-ascorbic acid, component name: L-ascorbic acid, FUJIFILM Wako Pure Chemical Industries, Ltd.]
<(C): Specific powder>
・Silica [trade name: Sunsphere (registered trademark) H-31, shape: spherical, refractive index: 1.44 to 1.50, AGC Si Tech Co., Ltd.]
<(D): Oil>
・Tri (caprylic/capric) glyceryl [trade name: TCG-M, ester oil, polar oil (I/O value: 0.33), KOKYU ALCOHOL KOGYO Co., Ltd.]

As shown in Table 2, retinol, an ascorbic acid compound, a specific powder, and an oil agent are included, and the content of the specific powder is 10% by mass or more and less than 50% by mass with respect to the total mass of the oily cosmetic. All of the oil-based cosmetics of Examples 2-1 to 2-4 were excellent in retinol stability. In addition, all of the oil-based cosmetics of Examples 2-1 to 2-4 were excellent in wrinkle-hiding effect.
On the other hand, the oil-based cosmetic of Comparative Example 2-1 containing no specific powder was inferior to the oil-based cosmetic of Examples in both retinol stability and wrinkle-hiding effect.
The oil-based cosmetic of Comparative Example 2-2, in which the content of the specific powder is less than 10% by mass with respect to the total weight of the oil-based cosmetic, is inferior in wrinkle-hiding effect to the oil-based cosmetic of Examples. was
The oil-based cosmetics of Comparative Examples 2-3, in which the content of the specific powder is 50% or more relative to the total mass of the oil-based cosmetics, are inferior to the oil-based cosmetics of Examples in retinol stability. was In addition, as described above, the oil-based cosmetic of Comparative Example 2-3 was powdery and difficult to apply well, so the wrinkle-hiding effect could not be evaluated.

[Test Example 3]
[Preparation of oily cosmetics]
(Example 3-1)
An oil-based cosmetic was prepared by the following method in an environment with an ambient temperature of 25°C.
15.95 g of tri(caprylic/capric)glyceryl oil was placed in a mortar. Next, 0.01 g of retinol, 0.04 g of ascorbic acid, and 4.00 g of silica, which is a specific powder [shape: spherical, refractive index: 1.44 to 1.50], were added to the above oil solution in a mortar. After the addition, the oily cosmetic of Example 3-1 was obtained by mixing using a pestle.
The oily cosmetic of Example 3-1 has the same composition as the oily cosmetic of Examples 1-2 and 2-2.

(Example 3-2)
In the preparation of the oil-based cosmetic of Example 3-1, a specific powder (dimethicone/vinyl Dimethicone) crosspolymer [shape: spherical, refractive index: 1.43] was carried out in the same manner as in Example 3-1 to obtain an oily cosmetic of Example 3-2.

(Example 3-3)
In the preparation of the oil-based cosmetic of Example 3-1, instead of blending the specific powder silica [shape: spherical, refractive index: 1.44 to 1.50], the specific powder PMMA [shape: Spherical, refractive index: 1.49.

(Example 3-4)
In the preparation of the oil-based cosmetic of Example 3-1, instead of blending the specific powder silica [shape: spherical, refractive index: 1.44 to 1.50], the specific powder nylon [shape: Spherical, refractive index: 1.53] was blended in the same manner as in Example 3-1 to obtain an oily cosmetic of Example 3-4.

(Comparative Example 3-1)
In the preparation of the oil-based cosmetic of Example 3-1, silica, which is a specific powder, was not blended, and the blending amount of tri(caprylic/capric) glyceryl, which is an oil agent, was changed from "15.95 g" to "19 An oily cosmetic of Comparative Example 3-1 was obtained in the same manner as in Example 3-1, except that the content was changed to 0.95 g.
The oil-based cosmetic of Comparative Example 3-1 has the same composition as the oil-based cosmetic of Comparative Example 2-1.

(Comparative Example 3-2)
In the preparation of the oil-based cosmetic of Example 3-1, instead of blending the specific powder silica [shape: spherical, refractive index: 1.44 to 1.50], powder that does not correspond to the specific powder The same procedure as in Example 3-1 was performed except that titanium oxide [shape: spherical, refractive index: 2.50 to 2.72] was blended to obtain an oily cosmetic of Comparative Example 3-2. rice field.

(Comparative Example 3-3)
In the preparation of the oil-based cosmetic of Example 3-1, instead of blending the specific powder silica [shape: spherical, refractive index: 1.44 to 1.50], powder that does not correspond to the specific powder An oily cosmetic of Comparative Example 3-3 was obtained in the same manner as in Example 3-1, except that mica [shape: plate-like, refractive index: 1.59] was blended.

(Comparative Example 3-4)
In the preparation of the oil-based cosmetic of Example 3-1, instead of blending the specific powder silica [shape: spherical, refractive index: 1.44 to 1.50], powder that does not correspond to the specific powder Except that silica [shape: plate-like, refractive index: 1.44 to 1.50] is blended, the same operation as in Example 3-1 is performed to obtain an oily cosmetic of Comparative Example 3-4. rice field.

(Comparative Example 3-5)
In the preparation of the oil-based cosmetic of Example 3-1, instead of blending the specific powder silica [shape: spherical, refractive index: 1.44 to 1.50], powder that does not correspond to the specific powder An oily cosmetic of Comparative Example 3-5 was obtained in the same manner as in Example 3-1, except that aluminum oxide [shape: spherical, refractive index: 1.76] was blended.

[evaluation]
The oily cosmetics of Examples 3-1 to 3-4 and Comparative Examples 3-1 to 3-5 were evaluated. Table 3 shows the results.

1. Retinol Stability Each oil-based cosmetic was evaluated for retinol stability.
The details of the evaluation test, evaluation criteria, etc. are the same as those of the evaluation test, evaluation criteria, etc. in "1. Stability of retinol" in [Evaluation] of [Test Example 1], so descriptions thereof are omitted here.

2. Wrinkle-Hiding Effect Each oil-based cosmetic was evaluated for wrinkle-hiding effect.
The details of the evaluation test, evaluation criteria, etc. are the same as those of the evaluation test, evaluation criteria, etc. in "2. Wrinkle concealing effect" in [Evaluation] of [Test Example 1], so description thereof is omitted here.

In Table 3, for convenience, the components corresponding to retinol, ascorbic acid compound, specific powder, and oil are classified into (A), (B), (C), and (D), respectively.
In Table 3, "-" described in the composition column means that the corresponding component is not included.

Details of each component listed in Table 3 are as follows.
<(A): Retinol>
・Retinol [trade name: Retinol synthetic, ingredient name: all-trans-retinol, Sigma Aldrich]
<(B): Ascorbic acid compound>
・Ascorbic acid [trade name: L(+)-ascorbic acid, component name: L-ascorbic acid, FUJIFILM Wako Pure Chemical Industries, Ltd.]
<(C): Specific powder>
・Silica [trade name: Sunsphere (registered trademark) H-31, shape: spherical, refractive index: 1.44 to 1.50, AGC Si Tech Co., Ltd.]
- (Dimethicone/vinyl dimethicone) crosspolymer [trade name: 9701 Cosmetic Powder, shape: spherical, refractive index: 1.43, oil-absorbing powder, crosslinked silicone polymer, Dow Chemical Japan]
・PMMA [Product name: Matsumoto Microsphere (registered trademark) M-305, shape: spherical, refractive index: 1.49, oil-absorbing powder, component name: methyl methacrylate crosspolymer, cosmetic component display name: methacrylic acid Methyl Crosspolymer, Crosslinked Hydrocarbon Polymer, Matsumoto Yushi Seiyaku Co., Ltd.]
・Nylon [Grade: SP-10, Shape: Spherical, Refractive Index: 1.53, Oil Absorbing Powder, Cosmetic Ingredient Name: Nylon-12, Crosslinked Hydrocarbon Polymer, Toray Industries, Inc.]
<(D): Oil>
・Tri (caprylic/capric) glyceryl [trade name: TCG-M, ester oil, polar oil (I/O value: 0.33), KOKYU ALCOHOL KOGYO Co., Ltd.]
<Others>
・ Titanium oxide [trade name: UNIPURE WHITE LC 987, shape: spherical, refractive index: 2.50 to 2.72, Sensient Technologies Japan Co., Ltd.]
・ Mica [Product name: Sericite DN-MC, shape: plate-like, refractive index: 1.59, Dainippon Kasei Co., Ltd.]
・Silica [trade name: Sun Lovely C, shape: plate-like, refractive index: 1.44 to 1.50, AGC Si Tech Co., Ltd.]
・ Aluminum oxide [trade name: Mirinae (registered trademark) A-1000D Alumina Powder, shape: spherical, refractive index: 1.76, Toa Kasei Co., Ltd.]

As shown in Table 3, the oil-based cosmetics of Examples 3-1 to 3-4, which contain retinol, an ascorbic acid compound, a specific amount of specific powder, and an oil, all exhibit excellent retinol stability. was In addition, all of the oil-based cosmetics of Examples 3-1 to 3-4 were excellent in wrinkle-hiding effect.
On the other hand, the oil-based cosmetic of Comparative Example 3-1 containing no specific powder was inferior to the oil-based cosmetic of Examples in both retinol stability and wrinkle-hiding effect, as described above.
Instead of the specific powder, powder that does not correspond to the specific powder, that is, powder that has a refractive index exceeding 1.6 or a shape that is not spherical, Comparative Examples 3-2 to 3- 5 was inferior in at least one of retinol stability and wrinkle-hiding effect.

Claims (2)

retinol and
at least one compound selected from the group consisting of ascorbic acid and salts of ascorbic acid;
spherical powder having a refractive index of 1.6 or less;
oil and
and
An oil-based cosmetic in which the content of spherical powder having a refractive index of 1.6 or less is 10% by mass or more and less than 50% by mass with respect to the total mass of the oil-based cosmetic,
the spherical powder having a refractive index of 1.6 or less is at least one powder selected from the group consisting of silica and a crosslinked hydrocarbon-based polymer ;
The content of retinol is 0.001% by mass or more and 1% by mass or less with respect to the total mass of the oily cosmetic,
The total content of ascorbic acid and a salt of ascorbic acid is 0.01% by mass or more and 2% by mass or less with respect to the total mass of the oily cosmetic,
An oil-based cosmetic having an oil content of 45% by mass or more and 85% by mass or less with respect to the total mass of the oil-based cosmetic. 2. The oil-based cosmetic according to claim 1 , wherein the spherical powder having a refractive index of 1.6 or less is silica powder.