Nioxin Pro Clinical's System Kit 4 is designed for dry, damaged, colored hair with progressed thinning. Clinically and dermatologically tested, this shampoo nourishes and gently cleanses, preventing follicle-clogging sebum and resulting in thicker, fuller hair.

Formulated with a potent blend of niacinamide, biotin, and caffeine, this shampoo helps nourish the hair root, stimulate hair follicles, and strengthen the hair.

Benefits:
- Strengthening
- Nourishing
- Thicker, fuller hair
- Protects damaged hair