Olaplex No. 2 Bond Perfector
Wash your hair with water only if it is already clean, or with shampoo if it has product, cream, or oil on it. Dry with a towel.
Apply a coin-sized amount of Olaplex No. 2 to your hands, work it into a lather, then apply evenly through the hair.
Cover your hair with a thermal cap (recommended) and leave on for 30 minutes to an hour.
Rinse thoroughly, then wash with shampoo and conditioner.