System 4 Treatment Size:none Apply evenly through clean

Apply evenly through clean

loss of firmness and elasticity

Adds moisture and repairs damage

and leaves hair with long-lasting smoothness

Sodium Chloride Free

System 4 Treatment Size:none Apply evenly through cleanNioxin Pro Clinical's System Kit 4 is designed for natural, untreated hair with progressed thinning. Clinically and dermatologically tested. Nioxin System Kit 4's hair thickening treatment delivers essential nutrients, antioxidants, and botanicals to the scalp, nourishing and protecting it against damage. It also helps to refresh the scalp and increase the volume of every strand, leaving your hair looking fuller and thicker. This treatment contains UV