"Zotos Warm and Gentle Tinted Hair Perm has up to a 30% faster processing time than traditional dryer-activated, acid perms. Exothermic (self-heating) neutralizer is enriched with conditioners and a silicone protectant to restore hair's moisture balance and tighten and smooth the cuticle for lasting, natural-looking style support. Lustrous, healthy-looking, easy-to-style curl For single processed tinted (20 volume peroxide or lower)hair Gentle, true acid (6.7 pH) perm Faster, gentler dryer-activated processing Reduced perm odor "