Along with the 15% THD ascorbate (vitamin C) it uses to fight dark spots and signs of aging, this serum also uses glycolic acid and saccharide isomerate extract to gently exfoliate while ...
One of the most popular derivatives is tetrahexyldecyl ascorbate (often called THD-ascorbate), which is marketed as a more tolerable alternative that offers similar results. Unlike L-ascorbic acid ...