The Hyaluronic Acid Hydrating Hair Treatment is perfect for dry, frizzy, compromised hair, helping to smooth and promote healthy polish while warding against elemental aggressors. With a featherweight texture that ‘sleekens’ your strands without dragging hair down, this potent elixir boats 2% Resisthyal (to maximise shine as it counteracts brittleness), water-retaining optimised low and high molecular weights of hyaluronic acid (a skin care superstar that plumps and maximises moisture levels), 1% Betaine to nourish and soften and 1% panthenol to hydrate, this treatment is the key to glossy, advert-worthy locks. In clinical trials, 83% of testers claimed their hair looked less frizzy after four weeks of use.