The Davines Balance Curling System is an ammonia-free perm with ammonium thioglycolate. Its formulation enriched with vegetal derivatives with a strong conditioning power, protects and moistures the hair during the perm treatment. The hair results elastic and glossy with natural waving from root to tip. Also in case of damaged hair the perm effect is even along the hair length. The styling is soft and natural. No. 1: For normal or resistant hair. No. 2: For fine or damaged hair.