Matrix Opti Curl Self Adjusting Acid Wave 1 Application creates the perfect curl every time. Safe for at home use, and nourishing for healthy results. The perm solution contains a blend of conditioning agents and humectants, including glycerin and hydrolyzed wheat protein, to help protect the hair from damage and maintain its moisture balance. It also uses an acid-based formula, which is gentler on the hair than traditional alkaline based perm solutions, making it a good choice for those with fine or fragile hair. Matrix Opti Curl Self Adjusting Acid Wave comes in two strengths, Regular and Extra Body, to accommodate different hair types and desired curl intensity. It is recommended to be used with Matrix Opti Curl Neutralizer to complete the perming process and lock in the curls. How to use: As with any hair perm product, it's important to follow the instructions carefully and to conduct a strand test prior to use to ensure the product is suitable for your hair type and condition.