JPH08109122A - Skin cosmetic - Google Patents

Abstract

PURPOSE: To obtain a skin cosmetic excellent in improving effects on roughened skin and dry skin caused by aging of the skin and further usability thereof. CONSTITUTION: This skin cosmetic is obtained by blending (A) at least one selected from respective extracts of Phellodendron amurense Ruprecht, Betula platyphylla Suketchev var. japonica Hara, Saliva officlnalis L., Thymus vulgaris L. and Anthemis nobilis L. with (B) meso-erythritol. The amounts of the ingredients are 0.01-10.0wt.%, preferably 0.05-5.0wt.% ingredient (A) (expressed in terms of drying residue) and 0.1-10.0wt.% ingredient (B). The extracts of the Phellodendron amurense Ruprecht, Betula platyphylla Suketchev var. japonica Hara and Saliva officinalis L. are respectively obtained from tree barks after removing the periderm of the Phellodendron amurense Ruprecht, a leaf, tree bark and xylem of Betula platyphylla Suketchev var. japonica Hara and the whole herb of Saliva officinalis L. with purified water, ethanol, propylene glycol or 1,3-butylene glycol and the extract of the Thymus vulgaris L. is prepared by extracting the whole herb with propylene glycol or 1,3-butylene glycol. The extract of the Anthemis nobil-is L. is obtained by extracting a flower thereof with propylene glycol.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skin cosmetic excellent in preventing skin aging. More specifically, the present invention relates to a skin cosmetic having an excellent effect of improving rough skin and dry skin caused by aging of the skin and also having excellent usability.

[0002]

2. Description of the Related Art Aging also causes changes in the skin. That is, the skin is dry and non-smooth, and keratinocyte exfoliation phenomenon is observed. It is said that aging skin has a slow turnover speed, and that the turnover speed increases when the skin has an antiaging effect.

Conventionally, in order to meet consumers' desire to keep their young skin forever, many skin anti-aging cosmetics containing various anti-aging agents are found in the market. However, these skin anti-aging cosmetics are generally slow in the effects of anti-aging and the like, and the effects appear only after continuous use for a long period of time, which is not sufficiently satisfactory and leaves room for improvement. It was the reality.

In view of such circumstances, the inventors of the present invention have made earnest researches to improve the difficulties of the prior art, and as a result,
Skin cosmetics characterized by containing meso-erythritol and at least one selected from psyllium extract, birch extract, sage extract, pearl oyster extract, and chamomile extract, due to a synergistic effect, caused by aging, roughened The present invention has been completed by discovering that rough skin is improved at an early stage by densifying and promoting the structure of the skin, and that it is also excellent in the feeling of use.

That is, an object of the present invention is to provide a skin cosmetic which is excellent in improving rough skin and dry skin caused by aging of the skin, and is also excellent in usability.

[0006]

In order to achieve the above object, the skin cosmetic of the present invention has the following constitution. That is, it is a skin cosmetic characterized in that meso-erythritol is blended with at least one kind selected from psyllium extract, birch extract, sage extract, red pearl extract and Roman chamomile extract.

The psyllium extract used in the present invention can be obtained by converting psyllium (Phellodendron amurense Ruprecht) or other bark excluding the pericarp of the same genus plant into purified water, ethanol, propylene glycol, 1,3-butylene glycol or a mixture thereof. It is an extract obtained by extraction.

The birch extract used in the present invention includes birch (Betula alba L., Betula leuta L., Folia betula) leaves, bark, xylem, purified water, ethanol, propylene glycol, 1,3-butylene glycol, etc. It is an extract obtained by extraction with.

The sage extract used in the present invention is sage
(Salvia officinalis L) is an extract obtained by extracting from whole grass with purified water, ethanol, propylene glycol, 1,3-butylene glycol and the like.

[0012] The mussel extract used in the present invention is an extract obtained by extracting whole grass of Thymus vulgaris L with propylene glycol, 1,3-butylene glycol or an aqueous solution thereof.

The Roman chamomile extract used in the present invention is an extract obtained by extracting from flowers of Roman chamomile (Anthemis nobilis) with propylene glycol.

[0012] The above-mentioned psyllium extract, birch extract,
The sage extract, red moss extract and Roman chamomile extract are generally known as substances having an anti-inflammatory effect. However, it has not been known that these have an antiaging effect due to a synergistic effect with meso-erythritol.

The amount of the above substances added to the skin cosmetic of the present invention is 0.
01 to 10.0 wt% (hereinafter abbreviated as wt%) is preferable, and 0.05 to 5.0 wt% is more preferable.

In the text below, the blending amount is indicated based on the pure content (converted to the dry residue) of the extract obtained by extraction as described above.

The meso-erythritol used in the present invention is a known substance (Japanese Patent Laid-Open No. 64-34243, Japanese Laid-Open Patent Publication No.
Japanese Patent No. 108953 has a sugar alcohol structure of tetracarbon sugar and has a non-cariogenic action, and its application to the food field has been proposed. Up to now, it has not been known that meso-erythritol improves synergistic effects with the above-mentioned substances, especially on rough and dry skin caused by aging of the skin.

The amount of meso-erythritol to be added to the skin cosmetic of the present invention is 0.1-10.
0 wt% is preferable.

The skin cosmetic of the present invention can be formulated into lotions, creams, emulsions, packs and the like according to a conventional method.

The skin cosmetic of the present invention contains a tar pigment, a coloring pigment such as iron oxide, a preservative such as paraben,
Anionic surfactants such as fatty acid soap, sodium cetyl sulfate, sodium N-stearoyl-L-glutamate, polyoxyethylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene polyhydric alcohol fatty acid ester, polyoxyethylene hydrogenated castor oil , Polyhydric alcohol fatty acid ester, nonionic surfactant such as polyglycerin fatty acid ester, cationic surfactant such as tetraalkylammonium salt, amphoteric surfactant such as betaine type, sulfobetaine type, sulfoamino acid type, lecithin , Natural surfactants such as lysophosphatidylcholine, pigments such as titanium oxide, antioxidants such as dibutylhydroxytoluene, chelating agents, various vitamins, various amino acids, various animal and plant extract extracts, etc. It can be appropriately blended within the range to achieve the target.

[0019]

EXAMPLES The present invention will be described in detail below based on examples and comparative examples. The present invention is not limited to these. In addition,% used in Examples and Comparative Examples means% by weight.

The test methods used in the present invention (1) rough skin practical test and (2) sensory test (feeling of use) are as follows.

(1) Practical test for rough skin Female panelists (25 to 50 years old) who complain of rough and dry skin
Twenty people in each group were applied to the face with the Examples or Comparative Examples twice a day continuously for one month. The evaluation was shown by the number of people who answered that "rough skin was improved".

(2) Sensory test (feeling of use) 20 panelists from each group evaluated the characteristics after continuously using the example and the comparative example on the face for 10 days. The evaluation is shown by the number of respondents who answered “Affinity is good” to the questionnaire items regarding affinity.

Examples 1 to 7 and Comparative Examples 1 to 6 [lotion]

[0024]

[Table 1]

(Preparation Method) After the components A and B shown in Table 1 were uniformly dissolved, the components B and C were added to the component A, and the mixture was uniformly stirred and dispersed to obtain a product.

[0026]

[Table 2]

The rough skin test and the sensory test were carried out on Examples 1 to 7 and Comparative Examples 1 to 6 (lotions). Table 3 shows the results.

[0028]

[Table 3]

(Characteristics) As shown in Table 3, it is clear that the lotions of the respective examples are excellent in the rough skin improving effect and the feeling of use.

Examples 8-14, Comparative Examples 7-12 [skin cream]

[0031]

[Table 4]

(Preparation Method) The components A and B shown in Table 4 were uniformly heated and dissolved to bring the temperature to 80 ° C. Then,
After injecting and emulsifying the B component and the C component into the A component, the mixture was cooled to 30 ° C. with stirring.

[0033]

[Table 5]

The rough skin test and sensory test were carried out on Examples 8 to 14 and Comparative Examples 7 to 12 (cream). Table 6 shows the results.

[0035]

[Table 6]

(Characteristics) As shown in Table 6, it is clear that the creams of the respective examples are excellent in the rough skin improving effect and the feeling of use.

[0037]

As described above, it is apparent that the present invention provides a useful skin cosmetic having a remarkable rough skin improving effect and an excellent feeling in use.

Claims (1)

[Claims] 1. A skin cosmetic composition comprising meso-erythritol in combination with at least one selected from psyllium extract, birch extract, sage extract, red pearl extract, and chamomile extract.