Five molecular sizes of hyaluronic acid in a single serum. The Torriden Dive-In Low Molecule Hyaluronic Acid Serum was built around one premise — that truly effective hyaluronic acid hydration requires multiple molecular weights working at different depths of the skin simultaneously — and delivers on it in a formula that's become one of the most-loved HA serums in K-beauty.

The five-form HA complex includes Sodium Hyaluronate (surface hydration and moisture locking), Hydrolyzed Hyaluronic Acid (penetrates deeper for cellular hydration), Sodium Acetylated Hyaluronate (long-chain acetylated HA with stronger moisture retention and skin affinity), Sodium Hyaluronate Crosspolymer (a modified form with exceptional antioxidant and moisture-binding capacity), and Hydrolyzed Sodium Hyaluronate (the smallest molecule size, able to reach the deepest layers). The combined effect is hydration that works from the surface down — instantly plumping, smoothing, and dewy on application. Supporting the HA complex is Ceramide NP and Cholesterol to strengthen the barrier and prevent moisture from escaping once it's been delivered. Madecassoside and Madecassic Acid (Centella actives) calm any sensitivity or redness. Panthenol (Pro-Vitamin B5) soothes and helps the skin build and retain moisture. Beta-Glucan from oat adds antioxidant and calming support. The texture is a sky-blue, slightly viscous water-gel that absorbs immediately without residue or stickiness.

Fragrance-free. Hypoallergenic tested. Suitable for all skin types.

Sul Skin note: One of the most efficient and complete HA serums in the Sul Skin catalogue — exceptional on its own or as the first serum step before a richer treatment.