Cosmetic composition comprising vitamin C
A vitamin and composition technology, applied in the field of composition that inhibits the oxidation of vitamin C, can solve problems such as decolorization, odor, and market value reduction, and achieve the effect of ensuring stability
Inactive Publication Date: 2012-10-24
COTDE +1
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Problems solved by technology
[0014] At the same time, when ascorbic acid is used for topical application and is not consumed within a short period of time before being mixed with an aqueous solution, ascorbic acid begins to decompose in the aqueous solution, resulting in a reduction in the content of ascorbic acid, which leads to discoloration and odor and reduces market value
Method used
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[0041] The present invention may be better understood through the specific descriptions in the following examples, which are not to be construed as limiting the invention.
[0042] Example: Preparation of compositions including vitamin C with antioxidants and compositions including vitamin C only.
[0043] Assess natural antioxidants to determine whether they inhibit the oxidation of vitamin C. Vitamin C (99.0%, Cat. No. A5960), cysteine (98.0%, Cat. No. C7352), retinol (95.0%, Cat. No. R7632) and dilipoic acid (99.0%, Cat. No. R7632) .No.T5625) was purchased from Sigma and used. Pycnogenol and pine agent (Pinus-PA-ES) isolated by Pinux Company and Jeonbuk National University in Korea were used.
[0044] [Table 1]
[0045]
[0046]
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Abstract
Disclosed herein is a cosmetic composition for enhancing the stability of vitamin C for a long period of time. The composition includes a solid phase including vitamin C and an aqueous phase, which are separated from each other and are intended to be mixedimmediately before use. The composition is capable of inhibiting oxidation of vitamin C, which has anti- wrinkling and skin whitening effects but has problems when used intopical applications due to its structural in not stability as a result of being easily oxidized by oxygen dissolved in water, and the composition thus provides vitamin C in a state retaining its physiologicalactivity. The solid phase further includes one or more antioxidants selected from the group consisting of kojic acid, a-lipoic acid, proanthocyanidin, retinol, retinol derivatives, coenzyme QlO, cysteine antioxidants, selenium, pycnogenol, enzogenol and fingenol.
Description
technical field [0001] The present invention relates to a composition capable of inhibiting the oxidation of vitamin C. Vitamin C has anti-wrinkle and skin-whitening effects, but due to its unstable structure, it is easily oxidized by oxygen dissolved in water, so there are problems when used for topical application, and The composition provides vitamin C in a state that retains its physiological activity. More specifically, the present invention relates to cosmetic compositions comprising solid and liquid phases having separate phases including vitamin C, intended to be mixed immediately prior to use to ensure long-term stability of vitamin C. Background technique [0002] Vitamin C, also known as ascorbic acid, has many advantages when used topically and has therefore been widely used in cosmetic and topical pharmaceutical formulations. [0003] Vitamin C acts as a cofactor in the hydroxylation of lysine and proline residues of procollagen in the dermis to stimulate the s...
Claims
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IPC IPC(8): A61K8/67A61Q19/00
CPCA61K8/365A61K2800/522A61K8/676A61K8/02A61K8/671A61K2800/88A61K2800/882A61K8/498A61K8/97A61Q19/02A61Q19/08A61K8/9767A61K8/9789A61K8/67A61Q19/00
Inventor 李在弘张东逸郑伦朱
Owner COTDE