Processing with heat or at room temperature should be determined by the condition of the hair.
Processing with heat or at room temperature should be determined by the condition of the hair. Ethnic hair that is not relaxed or has only been relaxed a few times is much stronger than hair that is relaxed every few months, therefore, a test strand is extremely important when dealing with this type of hair.
Since vibrant results are obtained processing FRAMCOLOR 2001 LIGHT&SHINE at room temperature, it is best to just process all hydroxide-relaxed hair at room temperature if you have no history of previous chemicals.