Is 20% vitamin C safe for the skin?Updated a month ago

20% tetrahexyldecyl ascorbate (a lipid-soluble vitamin C derivative) is safe for the skin when used as directed. Please rest assured that all of our products are extensively and independently reviewed by safety assessors before they go on the market. It’s also been tested on a consumer panel of 112 participants and is proven to be gentle on both blemish-prone and sensitive skins*. In fact, 94% of sensitive skins would recommend C-Tetra Advanced Gel-Serum to others with the same skin type.**

*Proven via independent consumer study conducted over 4 weeks on 112 participants. 

**Proven via independent consumer study conducted over 4 weeks on 35 participants with sensitive skin.