Bio AMP: Provides thicker looking hair and improves strength.
Scalp Access Delivery System: Purifying agents clean away follicle clogging sebum and environmental residues from the scalp whilst also providing sun protection for the skin.
Glyco-Shield: Provides protection and moisture balance to chemically treated hair while leaving the scalp feeling rejuvenated and refreshed.
Directions: For best use, use in conjunction with Nioxin's 3 part daily use treatment. First, cleanse with System 4 Cleanser, then apply System 4 Conditoner to wet hair and leave in between 1 and 3 minutes before rinsing out. Finally apply the leave in System 4 Scalp Treatment.