This water-based serum combines ferulic acid with high levels of vitamin C (20% L-ascorbic acid) to fight premature aging. The serum tingles slightly upon application and the high vitamin C content could be problematic for sensitive skin (this line offers serums with lower concentrations of vitamin C that would be more suitable for sensitive skin types). The serum has a strange but tolerable scent. After using this product for several months I saw no visible improvement to my skin, but to be fair, this product claims to prevent rather than correct existing skin damage.
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