Nioxin Scalp + Hair Thickening System 1 Leave-On Treatment Not enough information provided to identify specific ingredients to avoid damaged or curly hair

damaged or curly hair

Antioxidant-rich acai berry extract

Concentrated eye serum with pure hyaluronic acid to reduce signs of aging around the eye area

Clinically tested to remove 90% of accumulated dead skin cells

A gel texture shampoo that cleanses and helps repair and strengthen dry

Nioxin Scalp + Hair Thickening System 1 Leave-On Treatment Not enough information provided to identify specific ingredients to avoid damaged or curly hairNioxin Pro Clinical's System Kit 1 is designed for natural, untreated hair with light thinning. Clinically and dermatologically tested, this nourishing and protective leave on treatment strengthens each strand from within, resulting in thicker, fuller hair.