Forever Liss Purple Btox Zero for Blond and Gray Hair 160gBtox Blond Zero Forever Liss was developed with the Anti Yellow Treatment System technology, with natural actives and Vitamin Blend. It proposes the yellowing, volume reduction and eliminates the frizz of the hair naturally and without formaldehyde. Enriched with Murumuru Butter, Aa Extract and Purple Grape Seed, this trio penetrates the hair fiber, reconstructs the inner layers of the hair and aligns the cuticles, treating deeply. Repairs split ends