JP2006096706A - Cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prepare a cosmetic excellent in preventing effect on cosmetic smear caused by various reasons by immobilizing fatty acids in the sebum independently from kinds of the fatty acids. <P>SOLUTION: This invention relates to the cosmetic containing tubular magnesium carbonate comprising flaky fine crystal which makes the cosmetic to have a powder structure with an enveloping part for sufficiently absorbing sweat, sebum, liquid from the lacrimal gland and quickly immobilizing components such as fatty acids in the sebum and oil and fat with its small amount, and the cosmetic maintains cosmetic smear preventing effect for a long time by using the tubular magnesium carbonate comprising flaky fine crystal as a foundation. The preferable tubular magnesium carbonate comprising flaky fine crystal has 0.5-5 μm inside diameter and 0.5-10 μm outside diameter and has 10-50 μm major axis. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sebum immobilizing agent composed of tubular basic magnesium carbonate composed of flaky fine crystals, and a cosmetic excellent in the effect of preventing makeup collapse comprising the sebum immobilizing agent.

  The makeup break-up that occurs after makeup can occur due to various factors such as sweat and sebum secretion, ultraviolet light, adhesion and reaction of substances contained in the outside environment, and the like. Conventionally, various improvements have been made to powders used in makeup cosmetics in order to prevent makeup breakage, and recently, the surface treatment of powders has been frequently improved. In order to prevent the powder that is in close contact with the skin from being absorbed by sweat and losing makeup, the powder is also subjected to water repellent treatment, such as metal soap, fatty acid, higher alcohol, silicone Etc. are used. The powder absorbency is a property of absorbing sweat and sebum, which erases the gloss of the skin and makes it difficult to break up the makeup. Make-up breakage is quicker for people with a large amount of sebum, and makeup breaks easily around the forehead and nose, which is called the T zone with a large amount of sebum. Kaolin, calcium carbonate, and magnesium carbonate are excellent in absorption of sweat and sebum, but the water absorption and oil absorption can be increased by making the same powder finer. Recently, a porous powder is used as a powder having an absorbing ability. It is known that there are porous silica beads and porous cellulose powder (see, for example, Non-Patent Document 1).

  In addition, makeup cosmetics using powder include powdered hydrogenated lecithin or an Al salt, Mg salt, Ca salt, Zn salt, Zr or Ti salt thereof and a compound containing a perfluoroalkyl group having 6 or more carbon atoms. Water- and oil-repellent powders obtained by treating the body surface, and cosmetics containing the same (for example, see Patent Document 1), and cosmetics containing alkyl fluorine-modified silicone having a specific structure ( For example, see Patent Document 2) and cosmetics containing particles of poly α-amino acid or a derivative thereof obtained by emulsion polymerization or heterogeneous polymerization of α-amino acid-N-carbonic anhydride (for example, Patent Document 3). For example), a coating powder of conchiolin powder coated with carboxymethyl chitin (for example, see Patent Document 4), and a polymer in volatile silicone. Makeup cosmetics containing dispersed non-aqueous polymer dispersions (for example, Patent Document 5), and powder cosmetics having iron oxide / titanium oxide sintered coloration content and sebum fixing ability (for example, Patent Document 6) ), Cosmetics obtained by blending a powder obtained by treating with a specific fluorine-modified silane coupling agent and cyclic silicone (for example, see Patent Document 7), surface treatment with metal soap or hydrogenated lecithin Microcrystalline cellulose powder (see, for example, Patent Document 8) is known.

  Furthermore, as cosmetics using magnesium carbonate powder, when carbon dioxide is blown into a magnesium hydroxide suspension, carbonation is carried out by blowing carbon dioxide while stirring while adding magnesium hydroxide to keep the concentration constant. Containing porous spherical magnesium carbonate with an average particle size of 5 to 30 μm, produced by reacting, has good usability such as spreading and spreading to the skin at the time of application, and finished state of the cosmetic film, making makeup lasting An excellent makeup cosmetic (see, for example, Patent Document 9) and extender, which has a structure in which two or more different-direction leaflet-like pieces are bonded and / or crossed, with an average particle diameter of 3 to 80 μm, oil absorption Cosmetics containing basic magnesium carbonate in an amount of 150 to 400 (mL / 100 g) are known (for example, see Patent Document 10). In addition, as a technique effective for preventing makeup collapse, a zinc oxide article in which amorphous zinc oxide is coated on a substrate (see, for example, Patent Document 11) has fine zinc oxide particles adhered to the silica surface. Silica / zinc oxide composites (see, for example, Patent Document 12) are known.

  On the other hand, basic magnesium carbonate, which is a columnar or tubular aggregated particle composed of flaky fine crystals, used as various fillers and carriers, and a production method thereof (for example, see Patent Document 13 and Patent Document 14) are known. .

JP-A-5-285370 Japanese Patent Laid-Open No. 7-258021 JP-A-9-241126 JP-A-9-59130 JP-A-9-59130 Japanese Patent Laid-Open No. 11-49637 JP 2001-2524 A JP 2003-146829 A Japanese Patent No. 2519436 Japanese Patent Laid-Open No. 2003-261796 JP-A-9-227792 Japanese Patent Laid-Open No. 11-1411 JP 2003-306325 A JP 2004-59378 A Published by Takeo Mitsui, “New Cosmetics”, pages 401-404, March 25, 2002, published by Nanzan-do Co., Ltd.

  Calcium carbonate, magnesium carbonate, or porous silica or porous cellulose, which are conventional powders, make up makeup cosmetics and the like well after application and improve sebum to a certain extent by improving makeup. Although it is impossible to fix the absorbed sebum, it is not enough to improve makeup collapse. In addition, zinc oxide takes time to fully solidify sebum, and only the free fatty acids in sebum are selective. However, it was not sufficient to improve makeup loss. The subject of this invention is providing the cosmetics which can be fix | immobilized irrespective of component types, such as a fatty acid and fats and oils in sebum, and were excellent in the effect with respect to the makeup collapse by various causes.

  As a result of earnest research on the physical properties of magnesium carbonate that are effective in preventing makeup breakage as a powder used for foundations, etc., magnesium in the past, conventional indefinite shapes, spheres, or two or more different leaflet shapes. The shape of magnesium carbonate, which has a structure in which the pieces are joined and / or crossed, is made into a tube made of flaky fine crystals, so that the powder structure has an inclusion part, and enough liquid from sweat, sebum, and lacrimal glands If sebum is quickly fixed without selecting a sebum component, and the tubular basic magnesium carbonate made of flaky fine crystals is used in the foundation, etc., the effect of preventing makeup collapse lasts for a long time. It has been found that this can be done, and the present invention has been completed.

  That is, the present invention relates to (1) a sebum fixing agent characterized by comprising tubular basic magnesium carbonate composed of flaky fine crystals as a main component, and (2) tubular basic magnesium carbonate having an inner diameter of 0. 5 to 5 μm, outer diameter 0.5 to 10 μm, major axis 10 to 50 μm, sebum fixing agent according to (1) above, or (3) sebum fixing according to (1) or (2) above And (4) the cosmetic described in (3) above, wherein the cosmetic is a makeup cosmetic.

  In the present invention, (5) the makeup cosmetic is a foundation, white powder or eye shadow, the cosmetic according to (4) above, or (6) the foundation is a solid powder foundation. The cosmetics described in (5) above, or (7) The above-mentioned (3) to (6) characterized in that the effect of preventing makeup collapse is displayed on any of the main body, packaging, instructions, and promotional materials. Any of the cosmetics according to any one of (8), (8) The anti-shine effect is displayed on any of the main body, packaging, instructions, and promotional materials. Regarding cosmetics.

  The cosmetic of the present invention is excellent in absorption of sweat, sebum and the like, and further solidifies instantly with a small amount of formulation without selecting a sebum component, so that the effect of preventing makeup collapse over time and floating of the cosmetic, There is an advantage that it is excellent in the effect of preventing shine.

The sebum fixing agent used in the cosmetic of the present invention is not particularly limited as long as it has a tubular basic magnesium carbonate composed of flaky fine crystals as a main component, and the cosmetic of the present invention is not limited. The tubular basic magnesium carbonate composed of flaky fine crystals is not particularly limited as long as it contains a sebum fixing agent mainly composed of tubular basic magnesium carbonate composed of flaky fine crystals. The tubular magnesium carbonate is preferably a cylinder having a diameter of 0.5 to 5 μm, an outer diameter of 0.5 to 10 μm, and a major axis of 10 to 50 μm. Furthermore, the specific surface area determined by the BET method is 120 to 160 m ² / g, the pore volume determined by the mercury intrusion method is 8000 to 11000 m ³ / g, and the oil absorption determined by JIS K-5101 is 110 to 140 mL. What is / 100g is preferable. As the tubular magnesium carbonate composed of such flaky fine crystals, Magtube Mg Tube (manufactured by Nippon Steel Mining Co., Ltd.), which is a basic magnesium carbonate, can be used as a commercial product. The shape of the magtube Mg Tube is the shape shown by the micrographs of FIGS. 1 and 2, and has an inner diameter of 0.5 to 2 μm, an outer diameter of 1 to 5 μm, and a major axis of 10 to 30 μm.

  The amount of tubular magnesium carbonate composed of flaky fine crystals in the cosmetic of the present invention is not particularly limited, but is preferably 0.1 to 15% by mass (hereinafter sometimes simply referred to as “%”). More preferably, it is 0.5 to 10%. If it is less than this, the effect of makeup break-up will not be achieved, and if it is more than this, the elongation will be hindered.

  In addition to the above-mentioned components, the cosmetics of the present invention are usually used in cosmetics such as powders, surfactants, oil gelling agents, aqueous components, ultraviolet absorbers, water-soluble polymers, Oil-soluble film forming agents such as trimethylsiloxysilicic acid, paraoxybenzoic acid derivatives, preservatives such as phenoxyethanol, vitamins, cosmetic ingredients, fragrances and the like can be appropriately blended within a range not impairing the effects of the present invention.

  As the powder, as long as it is a powder usually used in cosmetics, spherical, plate-like, needle-like shapes, fumes, fine particles, particle sizes such as pigment class, porous, non-porous particles, etc. It is not specifically limited by structure etc., Inorganic powders, glitter powders, organic powders, pigment powders, composite powders, etc. are mentioned. Specifically, titanium oxide, black titanium oxide, conger, ultramarine, bengara, yellow iron oxide, black iron oxide, zinc oxide, aluminum oxide, silica, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, chromium oxide, water Inorganic powders such as chromium oxide, carbon black, aluminum silicate, magnesium silicate, magnesium aluminum silicate, mica, synthetic mica, sericite, talc, kaolin, silicon carbide, barium sulfate, bentonite, smectite, boron nitride, Bright powders such as bismuth oxychloride, titanium oxide coated mica, iron oxide coated mica, iron oxide coated mica titanium, organic pigment coated mica titanium, aluminum powder, nylon powder, polymethyl methacrylate powder, acrylonitrile-methacrylic Acid copolymer powder, vinylidene chloride-methacrylic acid copolymer powder, polyethylene powder, polystyrene powder, organopolysiloxane elastomer powder, polymethylsilsesquioxane powder, polyurethane powder, wool powder, silk powder, crystalline cellulose powder, N -Organic powders such as acyl lysine powder, pigment powders such as organic tar pigments, lake pigments of organic dyes, fine particle titanium oxide coated mica titanium, fine particle zinc oxide coated mica titanium, barium sulfate coated mica titanium, titanium oxide Examples thereof include composite powders such as containing silica and zinc oxide-containing silica, and one or more of these can be used.

  As an oil agent, if it is an oil agent normally used for cosmetics, it will not specifically limit. Specifically, paraffin wax, ceresin wax, ozokerite, microcrystalline wax, montan wax, Fischer-Tropsch wax, polyethylene wax, liquid paraffin, squalane, petrolatum, polyisobutylene, polybutene and other hydrocarbons, carnauba wax, beeswax, lanolin Natural waxes such as wax and candelilla, glyceryl tribehenate, pentaerythritol ester of rosin acid, jojoba oil, cetyl isooctanoate, isopropyl myristate, glyceryl trioctanoate, diglyceryl triisostearate, dipentaerythritol fatty acid ester, macadamia Nut oil fatty acid esters such as phytosteryl, stearic acid, behenic acid, fatty acids such as 12-hydroxystearic acid, cetano Higher alcohols such as ru, stearyl alcohol and behenyl alcohol, oils and fats such as olive oil, castor oil, mink oil and owl, lanolin derivatives such as lanolin fatty acid isopropyl and lanolin alcohol, N-lauroiru L-glutamate di (cholesteryl, behenyl, Amino acid derivatives such as octyldodecyl), dimethylpolysiloxane, methylphenylpolysiloxane, alkyl-modified organopolysiloxane, alkoxy-modified organopolysiloxane, higher fatty acid-modified organopolysiloxane, silicones such as fluorine-modified silicone, perfluoropolyether, Fluorine-based oils such as perfluorodecane and perfluorooctane can be used, and one or more of these can be used.

  The surfactant is not particularly limited as long as it is usually an oil used in cosmetics. Specifically, glycerin fatty acid ester and its alkylene glycol adduct, polyglycerin fatty acid ester and its alkylene glycol adduct, propylene glycol fatty acid ester and its alkylene glycol adduct, sorbitan fatty acid ester and its alkylene glycol adduct, fatty acid of sorbitol Nonionic surfactants such as esters and their alkylene glycol adducts, polyalkylene glycol fatty acid esters, polyoxyalkylene-modified silicones, polyoxyalkylene alkyl co-modified silicones, alkylbenzene sulfates, alkyl sulfonates, α-olefin sulfones Acid salt, dialkylsulfosuccinate, α-sulfonated fatty acid salt, acylmethyl taurate, N-methyl-N-alkyl taurate Salt, polyoxyethylene alkyl ether sulfate, polyoxyethylene alkyl phenyl ether sulfate, alkyl phosphate, polyoxyethylene alkyl ether phosphate, polyoxyethylene alkyl phenyl ether phosphate, N-acyl amino acid salt, N-acyl Anionic surfactants such as N-alkyl amino acid salts, cationic surfactants such as alkylamine salts, polyamines and alkanoylamine fatty acid derivatives, alkylammonium salts and alicyclic ammonium salts, lecithin, N, Examples include amphoteric surfactants such as N-dimethyl-N-alkyl-N-carboxymethylammonium betaine, and one or more of these can be used.

  The oil gelling agent is not particularly limited as long as it is usually used in cosmetics. Specific examples include dextrin fatty acid esters, sucrose fatty acid esters, starch fatty acid esters, hydroxystearic acid, calcium stearate, and the like, and one or more of these can be used.

  The aqueous component is not particularly limited as long as it is usually used in cosmetics. Specifically, water, polyhydric alcohols such as propylene glycol, 1,3-butylene glycol, dipropylene glycol, glycerols such as glycerin, diglycerin, polyglycerin, aloe vera, hammamels, cucumber, lemon, lavender, A plant extract such as rose can be mentioned, and one or more of these can be used.

  The ultraviolet absorber is not particularly limited as long as it is usually used in cosmetics. Specifically, benzophenone series such as 2-hydroxy-4-methoxybenzophenone, 2,4,6-trianilino-para- (carbo-2′-ethylhexyl-1′-oxy) -1,3,5-triazine, Salicylic acid type such as 2-ethylhexyl salicylate, PABA type such as ethyl paradihydroxypropyl benzoate, dibenzoylmethane type such as 4-tert-4′-methoxydibenzoylmethane, and the like, one or more of these Can be used.

  The water-soluble polymer is not particularly limited as long as it is usually used for cosmetics. Specifically, cellulose derivatives such as methyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, natural alginate, soda, carrageenan, quince seed gum, agar, gelatin, xanthan gum, locust bean gum, pectin, gellan gum, etc. Synthetic polymers such as polymers, polyvinyl alcohol, carboxyvinyl polymer, alkyl-added carboxyvinyl polymer, polysodium methacrylate, polyacrylic acid glycerin ester, polyvinylpyrrolidone, etc. are used, and one or more of these are used. be able to.

  Examples of the cosmetic of the present invention include makeup cosmetics such as foundation, base material, white powder, blusher, eye shadow, eyebrow, concealer, lipstick and mascara, and skin care cosmetics such as sunscreen, emulsion and cream. The present invention has a remarkable effect when applied to makeup cosmetics such as foundations.

  Examples of the form of the cosmetic of the present invention include powder, solid, solid powder, stick, liquid, cream, multilayer, and sheet. The cosmetic dosage form of the present invention includes powder cosmetics, oily cosmetics, oil-in-water emulsified cosmetics, water-in-oil emulsified cosmetics, water-based cosmetics, solvent-type cosmetics, sheet-like cosmetics, etc. Is mentioned. In addition, the form and dosage form with which the effect of this invention is exhibited notably are solid powdery cosmetics.

  In the cosmetic product according to the present invention, the makeup-breaking prevention effect or the anti-shine effect can be displayed on any of the main body, packaging, instructions, and promotional material. For example, a container (main body) containing each cosmetic, a package (outer box) of the container (main body), instructions contained in the package (outer box), advertisements such as brochures and flyers By displaying that a product has a makeup-breaking prevention effect or an anti-glare prevention effect, it can be clearly distinguished from cosmetics without such display.

(Test example)
Sebum solidification test:
A sebum solidifying ability test was conducted as a representative evaluation of makeup break-up. In order to characterize tubular basic magnesium carbonate in a simple system, a report by Downing et al. (Downing DT, Straus JSand Pochi PE: Variable in the chemical compo-sition of human skin surface lipids. J. Invest. Dermatol., 53, 322-327 (1969)), sebum was modeled, and the solidification ability test of tubular basic magnesium carbonate against this model sebum was conducted. The composition of the prepared model sebum is shown in Table 1.

Evaluation method: “solidification ability for sebum and model sebum components that are liquid at room temperature (25 ° C.)”
10 g of model sebum was quantified in a 100 mL beaker containing a commercially available stirrer bar having a thickness of 0.7 cm and a length of 3.0 cm, and the mixture was stirred on a MAGNETIC STIRRE HS-3E manufactured by Iuchi at a predetermined rotation speed of 750 rpm. Next, 1.0 g of the powder particles (5) to (12) in Table 2 was added, and the time from when all the powder particles were added until the model sebum solidified and the stirrer bar stopped was measured. Furthermore, the solidification ability test was done with respect to (1) to (4) of Table 2 which is a constituent component of model sebum and is liquid at room temperature (25 ° C.).
Evaluation criteria and judgment criteria
[Time to solidify] [Score]
0 to 30 seconds: ◎
30 seconds to 180 seconds: ○
180 seconds to 600 seconds: △
600 seconds or more: ×

  As is apparent from Table 2, it was found that the tubular basic magnesium carbonate composed of flaky fine crystals used in the present invention was instantly solidified with a small amount of blending without selecting model sebum and constituent components of model sebum.

(Examples 1-3)
Examples 1-3 and Comparative Examples 1-6
[Solid powdery foundation (for dry use only)]
A solid powdery foundation was prepared by the composition shown in Table 3 and the following production method. For each item of “no makeup collapse due to sebum”, “no sebum shine”, “impact resistance (formability)”, Evaluation was made according to the evaluation method and judgment criteria shown, and the results are shown in Table 3.

(Production method)
A: Components 18 and 19 are heated and dissolved at 60 ° C. and mixed.
B: Components 1 to 17 are uniformly dispersed with a Henschel mixer (Mitsui Miike).
C: A and component 20 are added to B and dispersed uniformly.
D: C is pulverized with a pulverizer.
E: D was filled in a metal pan and compression molded to obtain a solid powdery foundation.

[Evaluation methods: “No seizure of makeup due to sebum” “No sebum”
For each sample of the examples and comparative examples, sensory evaluation was performed by 20 professional panel members. The contents of the evaluation are as follows. The solid powdery foundation shown in Table 3 was used, and each of the "no sebum makeup loss" and "no sebum shine" after 2 hours from the application of the cosmetics. The grade was evaluated and a score was assigned to each solid powder foundation, and the average score of all panels was determined according to the following criteria.
Evaluation criteria (Evaluation) (Contents)
6: Very good 5: Good 4: Somewhat good 3: Normal 2: Somewhat bad
1: Bad.
0: Very bad.
Judgment criteria (Average score) (Evaluation)
5.0 or more: ◎ (very good)
3.5 or more and less than 5.0: ○ (good)
1.0 to less than 3.5: △ (Normal)
Less than 1.0: x (defect)

[Evaluation method: "Impact resistance (formability)"]
Prepare 5 solid powdery foundations of the examples and comparative examples, respectively, and with the metal plate filled, let it fall freely on the acrylic plate from the height of 50 cm in the upright direction, and the surface state after the fall Observed, a score was assigned according to the following evaluation criteria for each solid powdery foundation, and an average score of n = 5 was calculated and determined according to the following four criteria.
Evaluation criteria
[Content] [Grade]
No change: 4
Slightly cracked but no problem with usability: 3
Cracks and gaps: 2
There are large cracks and gaps: 1
Judgment criteria
[Average score of n = 5]: [Score]
3.5 or more: ◎
3.0 or more to less than 3.5: ○
2.0 or more and less than 3.0: △
Less than 2.0: ×

  Compared with the solid powder foundation of the comparative example, the solid powder foundation is a cosmetic that is superior in all items of "no makeup collapse due to sebum", "no sebum shine", and "impact resistance (formability)" Met.

Example 4
Solid white powder (component) (%)
1. Mica 20
2. 3. remaining amount of talc Tubular basic magnesium carbonate (Note 1) 5
4). Mica titanium 10
5. Red 226 0.5
6). Ultramarine 0.2
7). Synthetic hydrocarbon wax powder 5
8). Squalane 1
9. Glyceryl trioctanoate 0.5
10. Methyl paraoxybenzoate 0.15
11. Perfume

(Production method)
A: Components 8 to 10 are mixed.
B: Components 1 to 7 are uniformly dispersed with a Henschel mixer (Mitsui Miike).
C: A and component 11 are added to B and dispersed uniformly.
D: C is pulverized with a pulverizer.
E: D was filled in a metal pan and compression molded to obtain a solid powdery white powder.
The solid powdery white powder of Example 4 obtained as described above was excellent in all items of “no makeup collapse due to sebum”, “no sebum shine”, and “impact resistance (moldability)”. It was a cosmetic.

(Example 5)
Solid powder eye shadow (component) (%)
1. Mica remaining amount Talc 20
3. Mica titanium 5
4). Boron nitride 5
5. Tubular magnesium carbonate (Note 1) 2
6). Ultramarine 2
7). Yellow No. 401 0.5
8). Synthetic hydrocarbon wax powder 5
9. Squalane 2
10. Vaseline 1
11. Dimethylpolysiloxane 3
12 Methyl paraoxybenzoate 0.1
13. Perfume

(Production method)
A: Ingredients 9 to 12 are heated at 60 ° C. and mixed.
B: Components 1 to 8 are uniformly dispersed with a Henschel mixer (Mitsui Miike).
C: A and component 13 are added to B and dispersed uniformly.
D: C is pulverized with a pulverizer.
E: D was filled in a metal pan and compression molded to obtain a solid powder eye shadow.
The solid powder eye shadow of Example 5 obtained as described above is excellent in all items of “no makeup collapse due to sebum”, “no sebum shine”, and “impact resistance (moldability)”. It was a cosmetic.

(Example 6)
Solid powder foundation (for water use only)
(Ingredient) (%)
1. The remaining amount of talc Mica 20
3. Mica titanium 5
4). Tubular magnesium carbonate (Note 1) 3
5. Titanium oxide 13
6). Bengala 0.8
7). Yellow iron oxide 2.5
8). Black iron oxide 0.3
9. Perfluoropolyether 3
10. Octyl methoxycinnamate 7
11. Dimethylpolysiloxane 2
12 Oxybenzone 0.5
13. Polyoxyethylene (20 mol)
Sorbitan monooleate 0.5
14 Methyl paraoxybenzoate 0.2
15. Perfume

(Production method)
A: Components 9 to 14 are heated at 60 ° C. and mixed.
B: Components 1 to 8 are uniformly dispersed with a Henschel mixer (Mitsui Miike).
C: A and component 15 are added to B and dispersed uniformly.
D: C is pulverized with a pulverizer.
E: D was filled in a metal pan and compression molded to obtain a solid powdery foundation.
The solid powdered foundation of Example 6 obtained as described above was excellent in all items of “no makeup collapse due to sebum”, “no sebum shine”, and “impact resistance (moldability)”. It was a cosmetic.

It is a microscope picture which shows the tubular basic magnesium carbonate of this invention. It is the microscope picture which image | photographed the cross section of the tubular basic magnesium carbonate of this invention.

Claims (8)

  A sebum fixing agent comprising a tubular basic magnesium carbonate composed of flaky fine crystals as a main component.   The sebum fixing agent according to claim 1, wherein the tubular basic magnesium carbonate has an inner diameter of 0.5 to 5 µm, an outer diameter of 0.5 to 10 µm, and a major axis of 10 to 50 µm.   A cosmetic comprising the sebum fixing agent according to claim 1 or 2.   The cosmetic according to claim 3, wherein the cosmetic is a makeup cosmetic.   The cosmetic according to claim 4, wherein the makeup cosmetic is foundation, white powder or eye shadow.   The cosmetic according to claim 5, wherein the foundation is a solid powdery foundation.   The cosmetic according to any one of claims 3 to 6, wherein an effect of preventing makeup collapse is displayed on any of the main body, packaging, instructions, and promotional material.   The cosmetic according to any one of claims 3 to 6, wherein an anti-shine effect is displayed on any of the main body, packaging, instructions, and promotional material.