NIOXIN Scalp + Hair Thickening System 3 is a three-step kit formulated to visibly thicken and strengthen color-treated, dry or damaged hair with light thinning. This full-size, three-month regimen combines a clarifying shampoo, a restorative conditioner, and a leave-in thickening treatment enriched with niacinamide,...

Nioxin System 3 Scalp + Hair Conditioner is a lightweight, salon-grade conditioner formulated to strengthen color-treated hair with light thinning while supporting scalp health for thicker-looking hair. This professional conditioner is the second step in the Nioxin three-part regimen, engineered to restore moisture balance,...

Nioxin System 3 Kit is a three-step scalp and hair regimen formulated to strengthen, thicken, and protect dry, color-treated hair experiencing light thinning. This complete pack from NIOXIN Pro Clinical combines a shampoo, conditioner, and leave-in thickening treatment to address scalp buildup, fragility, and...

Nioxin System 3 Scalp + Hair Conditioner is a lightweight, nourishing conditioner formulated to strengthen and add visible thickness to color-treated, dry or damaged hair showing light thinning. Designed as part of Nioxin's Pro Clinical regimen, System 3 conditioner combines targeted ingredients like niacinamide,...

Nioxin Hair Fall Defense Intensive Daily Leave-In is a leave-on scalp serum formulated with niacinamide, caffeine, lauric acid, and SANDALORE™ to strengthen hair roots and reduce visible shedding with regular use. This lightweight, daily leave-in treatment is designed for people experiencing thinning or fragile...

Nioxin Scalp + Hair Thickening System 2 Conditioner is a lightweight, salon-grade conditioner formulated to strengthen natural or untreated hair with progressed thinning while supporting scalp health. This professional conditioner is the second step in Nioxin's three-part System 2 regimen, designed specifically for natural...

Nioxin System 4 Scalp + Hair Conditioner is a lightweight, moisture-balancing conditioner formulated to strengthen and smooth colored, damaged hair with progressed thinning. This professional Salon-grade conditioner is the second step in the three-part Nioxin System 4 regimen. Built around BioAMP technology, it helps...

Nioxin System 1 Scalp Therapy Conditioner is a lightweight, density-protecting conditioner formulated to strengthen natural or untreated hair with light thinning while helping balance scalp moisture. This professional salon-grade conditioner is step two in the Nioxin System 1 regimen, created to support a healthier...

Nioxin Scalp Recovery Purifying Shampoo is a salon-formulated anti-dandruff cleanser that soothes itching and reduces flaking while deeply cleansing the scalp. Designed by a brand with over 25 years focused on scalp and thinning-hair care, this 33.8 fl oz bottle combines pyrithione zinc and...

NIOXIN System 4 Scalp + Hair Thickening Treatment is a leave-in serum formulated to nourish the scalp and visibly increase hair diameter for color-treated or damaged hair with progressed thinning. This professional-grade finish step completes the three-part NIOXIN System 4 regimen to help refresh...

Nioxin Scalp + Hair Thickening System 2 Shampoo is a salon-formulated cleanser that gently removes buildup to help hair look thicker and fuller on natural or untreated hair with progressed thinning. This professional-grade shampoo is the first step in Nioxin’s three-part System 2 regimen,...

Nioxin System 1 Scalp Therapy Conditioner is a lightweight, professional conditioner formulated to strengthen natural, untreated hair with light thinning while helping maintain scalp moisture balance. Designed as step two in Nioxin's three-part density-protecting regimen, this 16.9 fl oz Scalp + Hair Thickening Conditioner...

Nioxin System 2 Scalp & Hair Thickening Shampoo is a salon-grade cleanser formulated to remove buildup and visibly improve hair thickness and fullness for natural, untreated hair with progressed thinning. This professional-strength shampoo is the first step in Nioxin’s three-part System 2 regimen, developed...

Nioxin System 2 Scalp & Hair Thickening Leave-In Treatment is a daily, leave-in formula designed to refresh the scalp and boost the appearance of thicker, fuller natural hair with progressed thinning. This lightweight, leave-in step completes Nioxin's three-part System 2 regimen, delivering nutrients, antioxidants...

NIOXIN Scalp + Hair Thickening System 1 Shampoo is a detoxifying cleanser formulated to gently remove buildup and support fuller-looking natural hair with light thinning. Designed for natural, non-chemically treated hair that shows early signs of thinning, this salon-developed shampoo focuses on scalp clarity...

Nioxin System 3 Scalp + Hair Shampoo is a professional cleanse that moisturizes color-treated, dry or damaged hair while helping create the appearance of thicker, fuller hair in cases of light thinning. This salon-grade cleanser is the first step in Nioxin's three-part System 3...

Nioxin System 1 Cleansing Shampoo is a salon-grade detoxifying cleanser formulated to add body and visible thickness to natural, untreated hair experiencing mild thinning. This concentrated 33.8 fl oz shampoo is part of Nioxin’s scalp-and-hair thickening protocol created for fine, non-chemically treated hair. It...

NIOXIN System 4 Scalp + Hair Conditioner is a lightweight, density-protecting conditioner formulated to strengthen colored or damaged hair with progressed thinning while supporting scalp health. Designed as step two in the NIOXIN three-part regimen, this conditioner uses BioAMP technology with niacinamide and biotin...

NIOXIN System 1 is a three-step scalp and hair thickening regimen formulated to strengthen natural, untreated hair with light thinning and deliver visibly fuller-looking strands in about 30 days. If you have natural hair showing early signs of thinning, this trial-size NIOXIN System 1...

Nioxin System 2 is a three-step scalp and hair thickening kit formulated to strengthen strands and create denser-looking natural hair with progressed thinning. This trial-size, one-month supply combines a clarifying cleanser, a lightweight conditioner and a leave-in scalp treatment to reduce breakage, refresh the...