The product is a pure form of L-ascorbic acid containing no water, no preservation, so no low, irritating pH (acidic) occurs.
Detailed introduction to L-Ascorbic Acid (Vitamin C) Whitening Serum:
Our products are manufactured by SAGE Pharmaceuticals USA certificated with cGMP quality and approved by FDA (2319121) The quality is also guaranteed by US patent (6,645,508 B1)and World patent (WO 00/78283 A1). The impeccable patented amphiphilic solvent is both water and oil soluble. This ATDS (Amphiphilic Transepidermal Delivery System) technology allows formula to penetrate the skin rapidly down to the dermis to achieve maximum result of tissue repair.
With this unique patent, Csmax anti-aging skincare exceeds the limit of insufficient density problem facing the industry by offering the highest concentration (20~25% for pure L-ascorbic Acid). Also overcome the issue of oxidation and the stability can sustain up to 18 months.
The products have been launched successfully in Taiwan, Korea, Japan, China, Hong Kong and Thailand. The clinic test is completed in university affiliated hospital in Taiwan, Korea and China. The related clinic test has been published continually to worldwide.