System 4 Shampoo Size:none Ideal for those concerned with

Ideal for those concerned with mature skin

Primes hair for styling 10

they will be impressed with how soft and light it makes their hair feel

and healthy-looking

This duo adds shine

System 4 Shampoo Size:none Ideal for those concerned withNioxin 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 your hair to prevent against follicle clogging sebum, resulting in thicker, fuller hair. Formulated with a powerful blend of niacinamide, biotin and caffeine to help nourish the hair root, stimulate hair follicles and strengthen the hair. The three step regimen begins