2 Step protein kit protects and repairs hair when lightening, coloring, or straightening. Plex System Contains Coconut, Hemp, Rice, Linseed, Tamarind, Silk, and Amaranth. This salon-quality kit includes Step 1: Pre-Process Serum Nourish your hair with this protein and natural oil-infused Serum to create a protective barrier that locks in moisture and helps protect from damage during processing. Step 2: Post-Process Treatment Our intensive Treatment helps maintain hair health with Silk protein to help repair hair bonds. Coconut, Hemp, and Tamarind proteins help repair previously damaged hair and maximize moisture retention, softness, elasticity, and strength. Rice Proteins provide UV and heat protection. Use Step 2 once a week after color or hair treatment processing.