JP2003202335A - Method of selecting components of cosmetic chemical and cosmetic chemical - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of selecting components of a cosmetic chemical having little irritation and a nice feel, and a nonirritating cosmetic chemical providing a nice feel obtainable using the method. <P>SOLUTION: The method of selecting components of a cosmetic chemical is characterized in that it selects only the components which have been identified as being free of irritation and/or providing a nice feel, after applying the cosmetic chemical to skin, and checking the presence or absence of irritation and/or a feel. The cosmetic chemical is obtained using the method. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for selecting a component of a cosmetic composition having extremely low irritation and good feeling, and a cosmetic composition having a low irritation and good feeling obtained by using the method.

[0002]

2. Description of the Related Art The use of cosmetics is one of the important factors for maintaining healthy and beautiful skin. Further, since it is used directly on the skin every day, a cosmetic having a low irritation and a good feel is desired.

For this reason, cosmetic manufacturers have been devised to prevent the occurrence of irritation by incorporating an anti-inflammatory agent and to reduce the amount of an antiseptic agent which easily causes irritation.

[0004] Further, from April 2001, all ingredients of cosmetics are labeled, and consumers are able to know the composition themselves and be able to select a cosmetic that suits them. .

[0005]

[Problems to be Solved by the Invention] However, even if measures such as blending anti-inflammatory agents and adjusting the amount of antiseptic are taken, the skin quality of each person is too diverse, and thus sufficient hypoallergenicity is obtained. Could not provide sex cosmetics.

[0006] Although all ingredients of cosmetics are labeled, the current situation is that the number of ingredients in cosmetics is too large, and each one completely removes the ingredients that may cause irritation. It was extremely difficult to find a fee, and it was not a situation that could satisfy consumers.

Further, since the cosmetics are used by healthy people every day unlike medical products, the feeling is also an important factor. However, each of them is a cosmetic in which ingredients that may cause irritation are completely removed. However, it was very difficult to obtain cosmetics that consumers could feel.

[0008]

[Means for Solving the Problems] As a result of intensive studies to solve the above-mentioned problems, the present inventors have applied a cosmetic ingredient to the skin, and after confirming the presence or absence of irritation and / or feeling, It has been found that the above object can be achieved by producing a cosmetic composition by a method for selecting a cosmetic composition characterized by selecting only a component which has been confirmed to be absent and / or has a good feel, and the present invention Has been completed.

That is, according to the method for selecting a component of a cosmetic composition of the present invention, it is confirmed that the cosmetic composition is applied to the skin, and the presence or absence of irritation and / or the feeling of touch is not confirmed, and / or that the feeling of touch is good. It is characterized in that only selected components are selected.

Further, in the present invention, the cosmetic having a low irritation and a good feel is that there is no irritation and / or a good feel after the presence or absence of irritation and / or the tactile sensation is applied to the skin. It is characterized by using the cosmetic ingredient selection method in which only the ingredients confirmed to be selected are selected.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a method for selecting a component of a cosmetic and a cosmetic according to the present invention will be specifically described.

As the cosmetic ingredient of the present invention, there are usually added to cosmetics, for example, emulsifiers, oily ingredients, surfactants, humectants, antioxidants, preservatives, perfumes, various vitamin agents, and colorants. , Thickeners, ultraviolet absorbers, medicinal components, inorganic salts and the like can be added.

Further, as the cosmetic ingredient of the present invention, it is preferable to blend one or more water-soluble active ingredients which are not irritating and have a good feel. As water-soluble components, moisturizing action, anti-inflammatory action, anti-allergic action, astringent action,
There is no particular limitation on the extraction method and the like as long as it is a water-soluble component that has a whitening effect, a cell activating effect, an ultraviolet protecting effect, an active oxygen suppressing effect, etc. and can be applied to the skin. Specifically, mucopolymorphs such as sodium hyaluronate and chondroitin sulfate Na, yeast extract, whey,
Placenta extract, saitai extract, allantoin or ascorbic acid, water-soluble vitamins such as ascorbic acid derivative, acitaba, avocado, armchair, althea, arnica, gypsum, ginkgo, aloe, nettle, iris, fennel, turmeric, aget, echinacea, Ougon, Owakaku, Ouren, Barley, Okra, Hypericum, Odorikosou, Ononis, Dutch mustard, orange, seaweed, beech, kudzu, valerian, chamomile, oats, carrots, kawaromogi, licorice, raspberry, kiwi, kizuku, kuki, kuna, kina , Quince, quince, gardenia, shikon, gentian, grapefruit, chlorella, mulberry, keihi, genocho, kohone, burdock, rice, wheat, coriander, confri , Up-to-date, saffron, Sabonsou, hawthorn, Sanshichisou, pepper, shiitake mushrooms,
Dio, perilla, linden, spirea, peony,
Juzudama, ginger, ginger, birch, honeysuckle, horsetail, stevia, strawberry, oleander,
Hawthorn, hawthorn, hazelnut,
Achillea millefolium, mint minnow, mistletoe, sage, mallow, senkyu, senburi, soybean, turmeric, thyme, tea, chrysalis, camellia, camellia, thornweed, capsicum, spruce, spruce, spruce, spruce , Barley, parsley, pearl barley, hamamelis, roses, nephew, sandalwood, loquat, coltsfoot, butterbur, butcher bloom, grapes,
Bay, loofah, safflower, bodige, button, hop, red pine, horse chestnut, honeywort, swordfish, melissa, meliloth, peach, mungbean, cornflower,
Eucalyptus, yukinoshita, lily, mugwort, lavender, apple, litchi, lettuce, lemon, lotus root, rosemary, Roman chamomile, oleander, arginine, glycine, alanine, valine, leucine, isoleucine, serine, threonine, asparagine Examples thereof include amino acids such as acids, glutamic acid, cysteine, cystine, methionine, acetylmethionine, phenylalanine, tyrosine, proline and oxyproline.

When the cosmetic ingredient in the present invention is a mixture of multi-components as a raw material, it can be determined by applying the raw material itself to the skin. For example, when the Scutellaria extract is an extract extracted with purified water containing 30% 1.3-butylene glycol, the Scutellaria extract is applied for the determination.

The method of applying the cosmetic ingredient of the present invention to the skin is as follows:
The amount of the body part or the component for which the stimulus or the touch can be determined differs depending on the individual, and therefore the application amount of the body part or the component is not particularly limited. The application site is preferably the face, the nape of the neck, the back of the ear, the forearm, the back, and the like, and particularly preferably the back of the ear and the forearm. The coating amount is preferably 0.1 mg / cm ² or more. When the coating amount is less than 0.1 mg / cm ² , the irritation and feel cannot be evaluated, which is not preferable. Also 2.0 mg / c
When the coating amount is larger than m ² , the coating amount is too large and correct evaluation cannot be performed.

The evaluation of irritation and feel in the present invention is carried out by each individual applying each cosmetic ingredient to the skin. Although the number of times is not limited, in order to make a correct judgment, it is preferable to apply each component three times.

The method of selecting a cosmetic ingredient according to the present invention is to confirm the stimulus and feel of each ingredient necessary for each individual to make a cosmetic and find a cosmetic ingredient that suits him or her. .

In the cosmetics of the present invention, each individual confirms the irritation and feel of each of the ingredients necessary to make the cosmetics, finds out the cosmetic ingredient that suits oneself, and uses only those ingredients. It is a cosmetic product made from.

Next, the present invention will be more specifically clarified with reference to Examples and Comparative Examples. In the following, the blending amount is% by weight. Example 1 The components shown in Table 1 below were evaluated for irritation.
The test subject was a female in her twenties, and 0.5 mg / cm ^{2 of} each component was applied to the back of the ear three times to evaluate irritation. The evaluation was performed according to the following criteria. The obtained results are also shown in Table 1. ⊚: Very good ○: No particular problem x: Bad

[0020]

[Example 1]

[Table 1]

From the results in Table 1 above, it can be seen that irritation is felt in propylene glycol and placenta extract.

Example 2, Comparative Examples 1 to 3 Next, based on the results shown in Table 1, lotions were prepared and the stimulation of lotions was evaluated. The test subject was a female in her 20s, and 0.5 mg / cm ^{2 of} each lotion was applied to the back of the ear 3 times to evaluate irritation. The evaluation was performed according to the following criteria. The obtained results are also shown in Table 2. ⊚: Very good ○: No particular problem x: Bad

[0023]

[Table 2]

As is clear from the evaluation results shown in Table 2,
In Example 2, a good lotion was obtained without irritation. On the other hand, in Comparative Example 1, since stimulating propylene glycol is blended, irritation is caused even in lotion, which is not preferable. Further, in Comparative Example 2, since the placenta extract which is irritating is mixed, the lotion is irritating, which is not preferable. Furthermore, in Comparative Example 3, since propylene glycol and placenta extract which are irritating are mixed, there is irritation even in the lotion, which is not preferable.

Example 3 For the components shown in Table 3 below, irritation was evaluated.
The test subject was a female in her thirties, and 0.5 mg / cm ^{2 of} each component was applied to the back of the ear three times to evaluate irritation. The evaluation was performed according to the following criteria. The results obtained are also shown in Table 3. ⊚: Very good ○: No particular problem x: Bad

[0026]

Example 3

[Table 3]

From the results in Table 3 above, it can be seen that 1.3 butylene glycol and sodium pyrrolidonecarboxylate are irritating.

Example 4, Comparative Examples 4 to 6 Next, based on the results in Table 3 above, lotions were prepared and the stimulation of the lotions was evaluated. The test subject was a female in her thirties, and 0.5 mg / cm ^{2 of} each lotion was applied to the back of the ear three times to evaluate irritation. The evaluation was performed according to the following criteria. The results obtained are also shown in Table 4. ⊚: Very good ○: No particular problem x: Bad

[0029]

[Table 4]

As is clear from the evaluation results shown in Table 4,
In Example 4, a good lotion was obtained without irritation. On the other hand, in Comparative Example 4, there is stimulation 1,3-
The addition of butylene glycol causes irritation even in lotions, which is not preferable. Further, in Comparative Example 5, since irritating sodium pyrrolidonecarboxylate is blended, irritation occurs even in lotions, which is not preferable. Furthermore, in Comparative Example 6, there is stimulation 1,3-
The addition of butylene glycol and sodium pyrrolidonecarboxylate is not preferable because it causes irritation even in lotions.

In addition, comparing Example 1 and Example 3, it can be seen that the stimulating component is different for each individual.

Further, Examples 2 and 4 and Comparative Examples 1 to 1
Comparing Comparative Example 6, the components having different stimuli for each individual affect the final lotion.

[0033]

As described above, according to the method for selecting a cosmetic ingredient of the present invention, there is no irritation after applying the cosmetic ingredient to the skin and confirming the presence or absence and / or the feeling of irritation, and / or Alternatively, by selecting only the components which have been confirmed to have a good feel, there is an effect that there is no irritation and a good feel is provided.

Claims (2)

[Claims] 1. A cosmetic composition is applied to the skin, and after confirming the presence or absence and / or the feeling of irritation, only the ingredient confirmed to have no irritation and / or good feeling is selected. How to select cosmetic ingredients. 2. A cosmetic composition according to claim 1, which has been applied to the skin, and after confirming the presence or absence and / or the feeling of irritation, confirmed that there was no irritation and / or that the feeling was good. A cosmetic characterized by using a method for selecting a selected cosmetic ingredient.