Hyaluronic Acid

Hyaluronic acid (HA) is a glycosaminoglycan able to bind up to 1000 times its weight in water, forming a hydration film that instantly plumps fine lines and tightens the look of skin. The molecule exists in multiple molecular weights: high-MW HA hydrates the surface and calms, while low-MW HA penetrates deeper for longer-lasting effect — quality serums combine both. HA also supports wound healing and carries signalling functions in the dermis. At 0.1–2% it suits all skin types, layers under anything, and gives an immediate visible payoff. Pro tip: apply to slightly damp skin and seal with moisturiser — in very dry air, unsealed HA can pull moisture back out of the skin.