A Handbook of Top Vitamin C Serums for Radiant Skin

This text provides an overview of Geologie’s vitamin C serum, highlighting its suitability for sensitive skin due to its lower vitamin C concentration (5%) using 3-O-ethyl ascorbic acid. It mentions a study linking 5% vitamin C to increased collagen synthesis, suggesting possible benefits even at lower concentrations. It also notes that while 3-O-ethyl ascorbic acid may be better tolerated by those with sensitive or acne-prone skin, L-ascorbic acid is generally considered more effective, though further research is necessary. Additionally, the serum features ingredients like hyaluronic acid, ferulic acid, and vitamin E, which are beneficial for the skin.

The product is part of a personalized skincare routine offered by Geologie, which recommends products based on individual skincare goals through a quiz.