Amino Mason Moist Night Cream is a leave on treatment, apply on hair before bed and wake up with smooth and manageable hair. No rinsing required Experience new hair care revolution with proprietary Super Amino Acids Complex Formula. Hair is made of up amino acids, so why not replenish it back with it? Amino acids which are key components of the hair, repairs damages and balances moisture level. Night Cream repairs damaged cuticles overnight. Prevents bed hair and leaves you with manageable hair in the morning.