- System 5 is specially designed for normal to thin-looking, medium to coarse, natural or chemically-treated hair. It delivers smoothing control to hair while refreshing the scalp and restoring moisture balance. System 5 for fuller-looking, moisturized hair. Contains antioxidants and botanicals that help to provide a refreshed scalp environment. Glyco-Shield: White tea extract, humectants, peppermint oil and protective conditioning agents help provide protection and moisture balance to colortreated hair, and leave the scalp feeling rejuvenated and refreshed. Transactive Delivery System: Antioxidants, botanicals, vitamins, and purifying agents help clean away follicle-clogging sebum and environmental residues from the scalp skin, giving a clean and refreshed feeling. Smoothplex: Silk amino acids, kukui nut oil and protective conditioning agents help provide moisture balance and smoothing control, reducing loss by strenghtening against damage and breakage. Step 3 of 3 step system. TREAT: Apply directly to entire scalp. Gently massage into scalp. Do not rinse. May cause temporary redness to scalp skin after application.