Cosmetic

A technology of cosmetics and compounds, applied in the direction of cosmetics, cosmetics, cosmetic preparations, etc., can solve the problems of insufficient inhibition, odor, and insufficient effect, etc., and achieve excellent storage stability, inhibition of yellowing and odor.

Inactive Publication Date: 2007-02-07
KOBAYASHI KOSE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, when L-ascorbic acid-2-sodium phosphate is used in combination with a divalent or higher salt, the decomposition of L-ascorbic acid-2-sodium phosphate, especially when stored at a high temperature of 30°C or higher for a long time, occurs. Insufficient inhibition of yellowing or off-flavors
In addition, when L-ascorbic acid-2-sodium phosphate, a compound having a sulfhydryl group or a disulfide bond, and an amino acid having s

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Cream:

[0031] According to the composition shown in Table 1, the cream was prepared according to the following method. The following storage stability test (1) and storage stability test (2) were performed on the obtained cream. The results are shown in Table 1 together.

[0032] (preparation method)

[0033] A. Mix ingredients (1) to (6), heat and keep at 70°C.

[0034] B. Mix ingredients (7) to (16), heat and keep at 70°C.

[0035] C. After adding B to A for emulsification, cool to obtain a cream.

[0036]

[0037] The respective creams were used as samples, and after storing them in a thermostat at 50° C. for one month, the residual amount of sodium L-ascorbic acid-2-phosphate was quantified by high performance liquid chromatography. The result is expressed as a percentage of the remaining amount relative to the amount compounded at the time of manufacturing the sample.

[0038]

[0039] Take each cream as a sample, and fill two identical glass containers...

Embodiment 2

[0048] Lotion:

[0049] According to the composition shown in Table 2, the lotion was prepared according to the usual method. The following storage stability (appearance) test and storage stability (odor) test were performed on the obtained lotion. The results are shown in Table 2 together.

[0050]

[0051] The same samples were stored in thermostats at 5°C and 40°C for 3 months respectively. Then, using the sample stored at 5°C as a standard, the appearance of the two samples was evaluated according to the following criteria.

[0052]

[0053] The same samples were stored in thermostats at 5°C and 40°C for 3 months respectively. Then, using the sample stored at 5°C as a standard, the odor of the two samples was evaluated according to the following criteria.

[0054] evaluation standard:

[0055] Evaluation Evaluation content

[0056] ⊚: No change (yellow, taste) compared with the standard product.

[0057] ◯: Slight changes (yellowing, odor) are observed compared ...

Embodiment 3

[0063] Lotion:

[0064] According to the composition shown in Table 3, the lotion was prepared according to the usual method. The following storage stability (appearance) test and storage stability (odor) test were performed on the obtained lotion. The results are shown in Table 3 together.

[0065]

[0066] As shown in the results in Table 3, the lotions of products 16 to 24 of the present invention containing specific amounts of component (B) and component (C) can suppress the L- Sodium ascorbic acid-2-phosphate turns yellow and loses taste, and has particularly good storage stability.

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PUM

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Abstract

A cosmetic containing L-ascorbic acid 2-phosphate sodium salt that excels in long-term storage stability. In particular, there is provided a cosmetic characterized in that L-ascorbic acid 2-phosphate sodium salt (A) and at least one compound (B) selected from the group consisting of arginine, urea and triethanolamine are contained in a mixing mass ratio of (A):(B) ranging from 1:0.001 to 1:0.5.

Description

technical field [0001] The present invention relates to a cosmetic containing sodium L-ascorbic acid-2-phosphate, and more specifically, to a cosmetic product that suppresses yellowing and off-flavor accompanying the decomposition of sodium L-ascorbic acid-2-phosphate and preserves it by containing a specific component. Cosmetics with excellent stability. Background technique [0002] So far, for the purpose of improving or preventing skin darkening caused by sun exposure, brown spots caused by pigmentation, freckles, etc., lotions, lotions, creams, beauty essences, masks, washing products, dispersions, and ointments are used , liquid, aerosol, paste and other whitening cosmetics or anti-aging cosmetics, in which L-ascorbic acid is widely used as an active ingredient. [0003] However, since L-ascorbic acid is relatively easy to be oxidized or hydrolyzed, it is easy to decompose when used directly in combination with cosmetics, which may lead to the improvement or preventio...

Claims

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Application Information

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IPC IPC(8): A61K8/55A61Q1/00A61Q19/08A61K8/41A61K8/42A61K8/44A61K8/67A61Q19/00A61Q19/02
CPCA61Q19/08A61K8/41A61K8/42A61K8/44A61K8/676A61K2800/52A61Q19/00A61Q19/02A61K8/67
Inventor 绀野义一森山正大
Owner KOBAYASHI KOSE CO LTD
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