But vitamin ... C derivatives is similar to retinols and retinoids: Both work, but one is more concentrated and thus more effective. One of the most popular derivatives is tetrahexyldecyl ...

This vitamin C serum tackles all of these skin concerns ... says Dr. Kim, and tetrahexyldecyl ascorbate (THD) is a close second. Being water-soluble, L-ascorbic acid can't reach the deeper ...

Dr. Shirazi specifically recommends this serum for oily, sensitive skin. “It’s formulated with a 20% vitamin C complex—L-ascorbic acid and tetrahexyldecyl ascorbate—that visibly reduces wrinkles, ...

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 ...

The catchily named, tetrahexyldecyl ascorbate (THD) is the vitamin C of choice for this serum, meaning it’s gentler on the skin, easier to store and more stable in formulation. While squalane ...

The Lupure Vitamin C Serum with Hyaluronic Acid is a great ... ascorbyl palmitate, and tetrahexyldecyl ascorbate. L-ascorbic acid is the most effective and widely used form, but it can be unstable ...