- Maurens Plus Liss Professional Smoothing Activator with keratin and carbocisteine - Restructures hair, achieving straight and long-lasting smoothing for up to 3 months - Advanced formula with keratin amino acids and acidic pH for greater protection - Makes styling easier after using flat irons, sealing the hair cuticle - Suitable for natural, dyed, bleached, or chemically treated hair - Detailed application process for optimal results at home or in the salon - Do not apply to irritated or damaged scalp; perform a strand test if the hair has been previously treated - Follow the instructions to achieve a professional and safe finish