Formulated with multiple molecular weight hyaluronic acid to hydrate different layers of the skin plus a Matrxyl 3000™ peptide, it reduces the appearance of fine lines while plumping skin. Made of large molecules, it removes dead cells from the surface layer of the skin, while naturally locking in moisture. BHA is great choice for oilier skin as its anti-inflammatory and anti-bacterial properties can help calm breakout prone skin. The Inkey List Hyaluronic Acid Hydrating Serum. Thanks to added 1% Hyaluronic Acid it is non-drying to skin. I have sensitive, acne-prone skin, so I was reluctant to believe the hype about hyaluronic acid, assuming an acid was the last thing my skin … PHA (Polyhydroxy acid) is a gentle chemical exfoliant for sensitive skin. KEY … KEY INGREDIENTS: 2% Salicylic Acid; 1% low molecular Hyaluronic Acid… Clean at Sephora Clean at Sephora is formulated without a list … also this serum is perfect, gives … The INKEY List Hyaluronic Acid Serum I started using serums with hyaluronic acid for about six months and I have to say that I noticed quite noticeable changes on the skin.