Biotop 20 Volumizing Boost Hair Mask is a lightweight deep conditioner for fine, thin or flat hair that softens and detangles without taking away volume.

It uses the same botanical complex as the rest of the 20 line, with linden bud, white nettle, ginseng root and gleditsia seed extracts, plus vitamin E. Instead of heavy oils, it relies on light conditioning polymers, so hair stays soft and elastic but still has lift once dried.

After shampooing, apply to damp mid-lengths and ends, leave for 2 to 3 minutes and rinse. Biotop suggests once or twice a week. Vegan, colour-safe, cruelty-free and free of SLS, SLES, parabens and sodium chloride.

Water (Aqua), Stearyl Alcohol, Cetyl Alcohol, Cetrimonium Chloride, Polyquaternium-70, Stearamidopropyl Dimethylamine, Tilia Tomentosa Bud Extract, Panax Ginseng Root Extract, Gleditsia Triacanthos Seed Extract, Lamium Album Flower Extract, Tocopheryl Acetate, Phenoxyethanol, Dipropylene Glycol, Dimethicone, Caprylyl Glycol, Citric Acid, Polyquaternium-11, Chlorphenesin, Polyquaternium-55, Propylene Glycol, Glycerin, Myristyl Alcohol, Lauryl Alcohol, Potassium Sorbate, Sodium Benzoate, Polyaminopropyl Biguanide, Fragrance (Parfum), Linalool, Citronellol, Hexyl Cinnamal, Limonene, Amyl Salicylate, Hexamethylindanopyran, Linalyl Acetate, Tetramethyl Acetyloctahydronaphthalenes