What it is
This ingredient combines an ascorbyl (vitamin C) moiety with hyaluronic acid through a propyl linker, creating a single molecule that pairs antioxidant character with the moisture-binding behavior of hyaluronate. The design aims to deliver a more stable form of vitamin C than pure ascorbic acid while contributing hydration. It is used at modest levels in serums, sunscreens, and other leave-on products.
Safety & warnings
Vitamin C derivatives of this kind are generally well tolerated and tend to be less irritating than free L-ascorbic acid because the ascorbyl group is bound. The hyaluronate portion is water-soluble and not comedogenic. No specific fragrance-allergen concern is associated with this molecule.
Origin & sourcing
Synthetic derivative; manufactured by chemically conjugating an ascorbic acid moiety to hyaluronic acid, the latter typically produced by fermentation.
Questions everyone asks
How is this different from regular vitamin C?
It is a vitamin C derivative bound to hyaluronic acid, intended to be more stable and gentler than free ascorbic acid while also adding hydration.
Does it act as a sunscreen filter?
No. It is an antioxidant and conditioning ingredient, not a UV filter.