JP2000264833A - Skin cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject cosmetic having excellent moisturizing effect, rough skin improving effect, senility preventive effect and skin condition- improving effect, and useful as a facial cleansing cosmetic, lotion, milky lotion or the like, by including parsley essence and a ceramide and/or the like. SOLUTION: This skin cosmetic is obtained by including (A) pref. 0.001-10.0 wt.%, more pref. 0.01-2.0 wt.%, of essence extracted from parsley and (B) pref. 0.001-5.0 wt.%, more pref. 0.01-2.0 wt.%, of one or two kind(s) of ingredients selected from glycoceramides such as a ceramide and a glucoceramide. The compounding weight ratio of the ingredient A to the ingredient B is desirable to be 0.01 to 100.0. The ingredient A is extracted from the leaves, stalks, roots and whole grass of parsley using an extraction solvent such as water. This skin cosmetic is useful as a cream, pack or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention provides an excellent moisturizing effect,
The present invention relates to a skin cosmetic having a rough skin improving effect, an anti-aging effect, and a skin condition improving effect.

[0002]

2. Description of the Related Art Active oxygen generated in the skin due to ultraviolet rays or the like damages the stratum corneum, epidermal cells, and dermal cells of the skin, and is considered to be one of the causes of aging. With aging skin, the stratum corneum is dry and not smooth, and rough skin and exfoliation of the stratum corneum are seen. It is also known that the number of cells in the epidermis decreases, the metabolism of epidermal cells decreases, and the turnover speed of the skin decreases. In the dermis, wrinkles and sagging are observed due to a decrease in hyaluronic acid and denaturation of collagen and elastin. As a conventional skin cosmetic having an active oxygen scavenging action, there has been one containing an extract extracted from parsley (hereinafter referred to as parsley extract) (Japanese Patent Application Laid-Open No. 9-22410). On the other hand, ceramide and sugar ceramide are known to have an effect of adjusting intercellular lipids in the stratum corneum, suppressing water evaporation of the skin, and enhancing the barrier function of the skin, and are used in cosmetics and the like. (JP 6
1-260008, JP-A-62-56414).

[0003]

However, in cosmetics containing parsley extract, the active essence hardly penetrates the skin easily, and the effect alone cannot be said to be sufficient.
In recent years, an increase in the amount of ultraviolet rays due to the destruction of the ozone layer is considered, which is harmful to the skin and measures against active oxygen, which is known as one of the causes of aging, and activation of damaged skin cells, Also, there has been a long-awaited demand for development of cosmetics that cope with drying of the skin due to destruction or change of the environment.

[0004] In view of the above-mentioned problems, the present invention aims to solve the above-mentioned problems by providing a skin cosmetic having an excellent moisturizing effect, an effect of improving rough skin, an effect of preventing aging, and an effect of improving skin conditions.

[0005]

The inventors of the present invention have conducted intensive studies and have found that the extract extracted from parsley having an active oxygen eliminating action is combined with one or two selected from ceramide and sugar ceramide. When combined
Efficiently enhances active oxygen scavenging, cell stimulating and moisturizing effects compared to when each is used alone, eliminating active oxygen in the skin and recovering skin cells damaged by daily ultraviolet rays Further, the present inventors have found that it has a beautiful skin effect of adjusting the turnover acting on the epidermal cells in the skin, keeping the skin firm and maintaining a youthful skin, and completed the present invention.

[0006] That is, the present invention is a skin cosmetic composition having an excellent effect of scavenging active oxygen, comprising an extract extracted from parsley and one or a combination of two or more selected from ceramide and sugar ceramide. To provide.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below in detail. The parsley extract used in the present invention is parsley (Petroselium sativum) leaves, stems,
It is an extract extracted from roots and whole plants, and the extraction solvent is not particularly limited, but water, 1,3-butylene glycol,
It is a solvent such as ethanol and glycerin, and is an extract extracted alone or as a mixture of two or more.

Ceramides used in the present invention include those extracted from mammalian tissues such as cows and horses,
There are plants derived from rice bran and those obtained by chemical synthesis. The sugar ceramide is glucoceramide, galactosylceramide, etc., for example,
Examples include those extracted from the tissues of mammals such as cows and horses, those derived from plants obtained from rice bran, and those obtained by chemical synthesis.

The amount of the parsley extract used in the present invention is 0.001 to 10.1 based on the total amount of the skin cosmetic.
0% by weight, more preferably 0.01 to 2.0% by weight, and the amount of ceramide and sugar ceramide used is 0.001 to 5.0% by weight based on the total amount of skin cosmetics.
More preferably, the content is 0.01 to 2.0% by weight. Also,
As a blending ratio of parsley extract and ceramide or sugar ceramide, parsley extract / ceramide or sugar ceramide is 0.01
-100.0 is preferred. Skin cosmetics containing a combination of parsley extract and ceramide or sugar ceramide within this range can achieve the effects intended by the present invention.

The skin cosmetic of the present invention can be applied to, for example, facial cleansers, lotions, emulsions, creams, packs and the like. The skin cosmetic of the present invention may contain, in addition to the above, dyes, fragrances, preservatives, surfactants, plant extracts, pigments, antioxidants, and the like, as long as the object of the present invention is achieved. Can be.

[0011]

The present invention will be described below in detail with reference to examples and comparative examples. The rough skin improvement effect test, the stratum corneum turnover measurement test, and the sensory test used in the present invention are as follows.

[Rough Skin Improving Effect Test] Apply to 10 middle-aged and elderly subjects having rough skin on lower legs for 4 weeks continuously.
The effect was evaluated. That is, about 0.5 g of a sample was applied once a day to the test site on the left lower leg outside of the test subject, and the skin condition before the start of the test and after the test was determined according to the criteria shown in Table 1. The right lower leg was used as a control without applying the sample.

[0013]

[Table 1]

By comparing the results of the judgment between the test site and the control site before and after the test, it is effective if the degree of dryness of the skin is improved by two or more steps (for example, + →-, ++ → ±). Valid, no change if not. The test results were indicated by the number of subjects who were effective or slightly effective.

[Measurement test for turnover of stratum corneum] 5% by weight of fluorescent dye dansyl chloride was added to white petrolatum.
Make a blended ointment and apply it to the skin of the forearm of 10 subjects.
Closure was applied for 4 hours, and dansyl chloride was penetrated into the stratum corneum. Thereafter, about 0.2 g of the test sample was applied to the same site twice a day (morning and evening), and the fluorescence of dansyl chloride was examined once a day in a dark place using an ultraviolet lamp, and the number of days until the fluorescence disappeared Was used as the skin stratum corneum turnover.

[Sensory test (Beautiful skin effect test)]
Female subjects (35-55 years old) who complain of fine lines and dry skin
The samples were applied to 10 persons twice a day (morning / evening) for 4 consecutive weeks, and the effect after 4 weeks was evaluated. The test results were expressed by the number of people who answered that the skin was moistened, the skin became smooth, and the skin became taut for each item of skin wettability, smoothness, and elasticity.

Comparative Examples 1-4 and Examples 1-12 Table 2
Cosmetic liquid of the described composition, Comparative Examples 1 to 4 and Examples 1 to 12
Is prepared according to a conventional method, and the above-described tests are performed.
The results are shown in Table 3.

[0018]

[Table 2]

[0019]

[Table 3]

Based on the results, the basic cosmetic liquid of Comparative Example 1 and the cosmetic liquid of Comparative Example 1 in which parsley extract and ceramide or sugar ceramide were individually added, Comparative Example 2, Comparative Example 3 and Comparative Example 4 were obtained. In comparison, a cosmetic liquid prepared by combining a parsley extract and a ceramide, Example 1, Example 2,
Cosmetic solutions prepared by combining parsley extract and sugar ceramide in combination with the cosmetic solutions of Examples 3, 4 and Comparative Example 1, and Examples 5, 6, 6, 7 and 8 show a rough skin improving effect, It was shown that both the over-promoting action and the beautiful skin effect were high. In addition, the same effects were obtained in the cosmetic liquids prepared by combining the parsley extract with ceramide and sugar ceramide, and in Examples 9, 10, 10, and 12.

[Comparative Examples 5 to 8 and Examples 13 to 24] Creams having the compositions shown in Table 4, Comparative Examples 5 to 8 and Example 13
To 24 were prepared according to a conventional method, and the above tests were carried out. The results are shown in Table 5.

[0022]

[Table 4]

[0023]

[Table 5]

Based on the results, the cream of Comparative Example 5 and the cream of Comparative Example 5 each containing a parsley extract and ceramide or sugar ceramide alone were used. Example 13 and Example 14, Example 15, and Example 16 and cream containing a combination of extract and ceramide, and cream containing a combination of parsley extract and sugar ceramide, Example 1
7, Example 18, Example 19, and Example 20 showed that both the rough skin improving effect, the turnover promoting effect, and the beautiful skin effect were high. Further, a cream containing a combination of parsley extract, ceramide and sugar ceramide, Example 21,
The same effects as in Examples 22, 23 and 24 were obtained.

[0025]

As described above, the present invention can provide a skin cosmetic which is excellent in rough skin improving effect, turnover promoting effect, and beautiful skin effect.

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Claims (1)

[Claims] 1. A skin cosmetic comprising a mixture of an extract extracted from parsley and one or two selected from ceramide and sugar ceramide.