Stabilized L-ascorbic acid skin serum

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专利权人:

Arthur William Perry

发明人:

Arthur William Perry

申请号：

US14217331

公开号：

US09468597B1

申请日:

2014.03.17

申请国别(地区):

US

年份:

2016

代理人:

摘要：

An aqueous topical serum having stabilized bioactive L-ascorbic acid has a pH of from 3.4 to 3.8 and comprises from 10% to 18% by weight of L(+)-ascorbic acid, 0.2% by weight retinyl propionate, and from 0.005% to 0.5% by weight of a mixture selected from the group consisting of glabridin, silibinin and thyme.

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