JP2006069901A - Skin cosmetic and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stabilize vitamin C and to exhibit excellent beautiful skin effect without adding an artificial chemical substance for stabilizing vitamin C in fruit juice in a skin cosmetic containing acerola fruit juice. <P>SOLUTION: The skin cosmetic comprises acerola fruit juice and mineral water containing sodium hydrogencarbonate. Acerola fruit juice is obtained by squeezing acerola fruit washed with an aqueous solution of citric acid. The cosmetic contains 10-60 wt.% of acerola fruit juice. Mineral water may contain metasilicic acid or a metasilicate besides sodium hydrogencarbonate. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cosmetic for skin using a fruit juice of the fruit tree of the genus Malpighia (Acela, scientific name Malpighia emarginata DC) and a method for producing the same.

  The fruits of acerola are characterized by a particularly high content of vitamin C than other fruits. This vitamin C strengthens cellular tissues and capillaries, prevents melanin pigment formation, promotes collagen production, and causes stains. It is conventionally known to exert actions such as suppression of tyrosinase activity.

Since vitamin C has such an action, many types of cosmetics containing vitamin C have been published in the past, of which acerola extract is used as a source of vitamin C. In addition to the patent application for the cosmetics to be contained (see Patent Document 1), a skin whitening preparation for external use containing an acerola extract and a whitening agent and / or an anti-inflammatory agent (see Patent Document 2), an acerola extract and a superoxide Skin external preparations containing an active oxygen scavenger such as dismutase (see Patent Document 3) and skin external preparations containing an acerola extract and placenta extract (see Patent Document 4) are also known.
JP-A-2-200610 Japanese Patent No. 3513871 Japanese Patent No. 3513872 Japanese Patent No. 3513873

Since vitamin C is an unstable substance that is easily oxidized, in order to stably incorporate it into cosmetics, a derivative thereof, that is, a vitamin C derivative is made and this derivative is incorporated into cosmetics. In general, it has been extremely difficult to distribute cosmetics containing natural vitamin C as they are.
Further, since the action of vitamin C as a derivative was lower than that of natural vitamin C, there was a problem that it was difficult to obtain a sufficient effect of vitamin C in conventional cosmetics.

In the above cosmetics containing acerola extract as containing natural vitamin C (see Patent Document 1), preservatives and ultraviolet absorbers are added, and the above-mentioned skin external preparation for whitening (see Patent Document 2) Also in skin external preparations (see Patent Documents 3 and 4), various chemical substances are blended together with the acerola extract.
In such cosmetics, if many chemical substances are blended with the acerola extract, it can be expected that the effect of the acerola extract will be enhanced, but the concern that these chemical substances have undesirable side effects is also completely wiped out. I ca n’t.
The present invention is to provide a cosmetic that can be used in a stable state by blending acerola fruit juice rich in natural vitamin C into the cosmetic without using any artificial chemical substance. It is an issue.

The inventor has conducted various studies in view of the above problems,
(1) When mineral water containing sodium hydrogen carbonate is added to cosmetics together with acerola juice, vitamin C in the acerola juice is not only stabilized by the sodium hydrogen carbonate, but also the skin irritation of vitamin C is relieved. As a result, the skin beautifying effect of the cosmetic is improved.
(2) Such a cosmetic is obtained by blending sodium bicarbonate-containing spring water with acerola juice,
I found out.

The present invention was invented based on such knowledge,
1. A cosmetic for skin comprising acerola juice and mineral water containing sodium bicarbonate.
2. A method for producing an acerola fruit juice-containing skin cosmetic, characterized in that sodium bicarbonate-containing mineral water is blended with acerola fruit juice.
It is related to.

  This sodium hydrogen carbonate-containing mineral spring water naturally includes hot spring water, and usually contains many types of cations and anions in addition to ions derived from sodium hydrogen carbonate. In the preparation, an excellent skin beautifying effect is expected due to the combined action of these ions in addition to the action of sodium bicarbonate itself. In particular, when metasilicic acid or metasilicate is contained in the mineral spring water, this skin beautifying effect is further enhanced by the synergistic action with sodium bicarbonate.

  In this skin cosmetic, if the content of acerola juice is 10% by weight or more based on the total amount of acerola juice and mineral spring water, the skin beautifying effect due to vitamin C becomes prominent. When the amount exceeds 60% by weight, the stabilizing action and the skin beautifying effect of vitamin C by the sodium hydrogen carbonate-containing mineral spring water are generally insufficient. Therefore, the content of acerola juice in the skin cosmetic of the present invention is generally 10% by weight. Although it is preferably 60 to 60% by weight, such a standard relating to the content of acerola juice depends on the type of mineral water, the production area, and the like.

When preparing acerola juice for the production of cosmetics, etc., the fruits of acerola are conventionally washed with tap water. In this conventional method, the acerola fruits are discolored by hypochlorous acid in tap water. However, when this acerola fruit was washed with an aqueous solution of citric acid, the fruit was not discolored, bacteria were removed from the surface of the fruit, and the resulting fruit juice was prevented from being spoiled or altered. It is generally preferred to wash the acerola fruit with an aqueous acid solution. This aqueous citric acid solution is generally used at a concentration of 0.2 to 2% by weight.
The cosmetic composition of the present invention may also optionally contain other naturally-occurring ingredients other than the acerola juice and sodium hydrogen carbonate-containing spring water, such as Japanese apricot orange, navel, pumpkin, guava, grapefruit, sudachi, papaya, yuzu , May contain fruit juice such as lemon.

  According to the present invention, since the acerola juice containing natural vitamin C and the sodium bicarbonate-containing mineral spring water are contained in the skin cosmetic, natural vitamin C that is stably retained for a long time by sodium bicarbonate. The skin-beautifying effect of Vitamin C is demonstrated in addition to the skin-beautifying effect of many ions contained in sodium bicarbonate and mineral water, as well as metasilicate or metasilicate contained in some cases. An excellent cosmetic effect is obtained.

The cosmetic for skin of the present invention is produced, for example, through the following procedure.
1) Collect acerola fruit and select good and bad.
2) The fruit is preferably washed with an aqueous citric acid solution to remove dirt and germs on the surface.
3) Freeze and store the washed fruit.
4) Naturally thaw frozen fruit.
5) The frozen fruit is preferably washed again with an aqueous citric acid solution before squeezing.
6) Pressed juice is applied to the washed fruit to obtain fruit juice from which the skin, seeds and solid fibers are removed.
7) Mix the mineral water in the fruit juice and mix them in an appropriate ratio.
8) The cosmetic material formed by the above mixing is filled in an aluminum pack, and this cosmetic material is formed into a commercial product.
9) Stored frozen until shipped.

Hereinafter, examples of the hot spring water used in the present invention will be given and their properties, component contents, etc. will be shown.
Example 1:
(1) Source name, Tarumi-14
(2) Source location, 1875 Komae, Hamahira, Tarumizu-shi (3) Name and location of facility used, Shikano Tarumizu Plant (594 Hamahira, Tarumizu-shi)
Treasure hot spring second factory (629 Hamahira, Tarumi-shi)
(4) Spring quality, alkaline simple hot spring (hypotonic, alkaline high hot spring)
(5) Spring temperature, source 46.8 ℃ (temperature 27 ℃)
(6) Test results Appearance Yu origin (light brown turbidity, weak hydrogen sulfide taste, odorless)
Test site (slightly brown, turbid, tasteless and odorless)
2. Hydrogen ion concentration (pH) Yu 8.6
Test site 8.70
3. Radon content 0.66 (per billionth Curie unit)
4). Density 0.9993 (at 20 ° C)
5. Table 1 shows the components of the hot spring (amount contained in 1 kg of the main body).

Example 2:
(1) Source name, Tarumi-18
(2) Source location, 629, Hamahira, Castle, Tarumizu City (3) Name and location of facility used, Shikano Tarumizu Plant (594, Hamahira, Tarumizu City)
Treasure hot spring second factory (629 Hamahira, Tarumi-shi)
(4) Spring quality, alkaline simple hot spring (hypotonic, alkaline high hot spring)
(5) Spring temperature, source 55.0 ° C (temperature 22 ° C)
(6) Test results Appearance Yu origin (colorless transparent, tasteless, odorless)
Test site (colorless, transparent, tasteless, odorless)
2. Hydrogen ion concentration (pH) Yu origin 9.0
Test site 9.17
3. Radon content 2.4 (one billionth Curie unit)
4). Density 0.9984 (at 20 ° C)
5. Table 2 shows the components of the hot spring (amount contained in 1 kg of the main body).

Example 3:
(1) Source name, Tarumi-22
(2) Source location, 3-20-2 Shiosaicho, Tarumi City
(3) Name and location of facilities used, Shikano Tarumizu Factory (594 Hamahira, Tarumizu City)
Treasure hot spring second factory (629 Hamahira, Tarumi-shi)
(4) Hot spring quality, simple hot spring (hypotonic, weakly alkaline, hot spring)
(5) Spring temperature, source 55.1 ° C (temperature 24 ° C)
(6) Test results Appearance Yu origin (colorless transparent, tasteless, weak hydrogen sulfide odor)
Test room (Clear and colorless, tasteless, weak hydrogen sulfide odor)
2. Hydrogen ion concentration (pH) Yu 8.4
Test site 8.59
3. Radon content 1.2 (one billionth curie unit)
4). Density 0.9986 (at 20 ° C)
5. Table 3 shows the components of the hot spring (amount contained in 1 kg of the main water).

  Next, an Example and a comparative example are given and this invention is demonstrated in detail. The acerola juice is produced by the above method, and the hot spring water has the analytical values shown in Table 3.

The cosmetics of Example 1 and Comparative Examples 1 and 2 were included in a mask after face washing at night and packed on the face for 20 minutes.
The subjects were females 30 years of age or older who had no symptoms of skin and worried about fine lines on the eyes, and were OL 20 people who went out during the day. (Including only).
The other living environment and the cosmetics used were not particularly limited. The answer results are shown in Table 5.

As is clear from the above results, it can be seen that in the example, the effect is more remarkable than in Comparative Examples 1 and 2.
In the case of Comparative Example 2 in which acerola juice alone was used, it was difficult to use because half of the subjects stopped using the skin because the skin irritation was too strong.
Further, in Comparative Example 1, the effect is not so much felt, and in the examples, it is considered that the effect of vitamin C is increased by the synergistic effect of the hot spring water containing bicarbonate and the like and acerola juice.

The skin cosmetics according to the present invention are cosmetics intended to protect the skin and include skin lotions, emulsions, creams, packs, and the like, and excellent effects can be expected particularly when used as packs.

Claims (5)

  A cosmetic for skin, comprising acerola juice and mineral water containing sodium hydrogen carbonate.   The cosmetic for skin according to claim 1, wherein the mineral water contains metasilicate or metasilicate.   The skin cosmetic according to claim 1 or 2, wherein 10% to 60% by weight of acerola juice is contained.   A method for producing an acerola fruit juice-containing skin cosmetic, comprising mixing a hydrogen carbonate-containing mineral spring water with acerola fruit juice.   The production method according to claim 4, wherein the acerola fruit juice is obtained from acerola fruit washed with an aqueous solution of citric acid.