A specific treatment for straightening and volume reduction of curly and frizzy hair. The Evolution Pro Treatment is part of a method (patented worldwide) which can leave hair straight, soft and shiny- even after many washes. Glyoxylic acid mixed with vegetal extracts at high temperatures can change the cuticular layers of the hair, giving a straight appearance and incredible volume reduction, without damaging the keratin disulfi de bridges. This product is free of silicones and sulfur compounds. The antioxidants and the vitamins (which the vegetal extracts contain in the treatment) are rich, protect and nourish the hair, leaving it particularly brilliant and soft.