Mizani Sensitive Scalp Rhelaxer...For Professional Use Only.- Fortifying- With Arginine Technology. Contains: 4- 7.5 Ounce Mizani Sensitive Scalp Rhelaxer Base;4- 2.0 Ounce Mizani Sensitive Scalp Activator; 4- Wooden Spatulas. Neutralizing Shampoo NOT included. WARNING: This package is designed and intended for use by professionals only. Instructions are for professionals, not consumers. Follow all directions carefully to avoid injury and hair loss.