Density Thickening Shampoo contains a unique blend of Amaranth Seed Extract and Hydrolysed Pea Peptides to instantly volumise fine hair without causing dryness. Philip Kingsley sulphate-free formula restores and strengthens strands from deep within the cortex, while BHAs gently exfoliate the scalp, for reduced hair breakage and an optimal scalp environment.To use: Apply to wet hair, gently kneading the scalp for 60 seconds. Add more water to create a lather. Rinse well and repeat if necessary.