• Nioxin Scalp + Hair Thickening System 4 Leave On Treatment - DermStreet
  • Nioxin Scalp + Hair Thickening System 4 Leave On Treatment - DermStreet
  • Nioxin Scalp + Hair Thickening System 4 Leave On Treatment - DermStreet
  • Nioxin Scalp + Hair Thickening System 4 Leave On Treatment - DermStreet
  • Nioxin Scalp + Hair Thickening System 4 Leave On Treatment - DermStreet
  • Nioxin Scalp + Hair Thickening System 4 Leave On Treatment - DermStreet
  • Nioxin Scalp + Hair Thickening System 4 Leave On Treatment - DermStreet
  • Nioxin Scalp + Hair Thickening System 4 Leave On Treatment - DermStreet

Nioxin Scalp + Hair Thickening System 4 Leave On Treatment

Hair Care • Foam
Regular price $26
30% OFF with code PREFALL30 View Details
EARN +260 POINTS WHEN PURCHASING THIS PRODUCT
Product Benefits
  • Creates the appearance of fuller, denser hair by increasing strand volume and improving hair body from root to tip
  • Helps fortify fragile, thinning hair and reduce breakage for healthier-looking strands over time
  • Enhances the strength and structure of chemically treated and color-damaged hair, making it more resistant to daily stressors
  • Nourishes the scalp with antioxidant-rich botanicals, helping to maintain a balanced and healthy scalp environment that supports hair growth
Expert Review
Includes UV filters to defend hair and scalp from sun exposure and environmental aggressors that can cause damage and dryness.
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All products at DermStreet are authentic guaranteed. Trusted by thousands, we’ve earned over 1,600+ 5 star reviews.

Nioxin Scalp + Hair Thickening System 4 Leave-On Treatment is a lightweight, leave-in formula specifically developed to help strengthen and boost the appearance of thinning hair, especially for those with color-treated or chemically processed strands. Expertly crafted to support the needs of dry, damaged hair, this treatment enhances volume and body while nourishing the scalp environment. It works by fortifying each strand at the root to reduce breakage and improve density, leaving hair looking fuller, thicker, and more resilient with daily use. Ideal as the final step in the System 4 regimen, it absorbs quickly without leaving buildup or residue.

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  • 5 stars: 12 (75%)
  • 4 stars: 4 (25%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
J
Julissa

It absorbs quickly and doesn’t make my hair greasy or sticky.

J
June

This treatment makes my scalp feel refreshed and my hair stronger.

A
America

I’ve noticed fewer hairs falling out and new growth starting to come in.

H
Holly

My hair feels thicker and looks fuller when I use this regularly.

H
Haleigh

The formula feels cooling and soothing on my scalp, especially after washing.

C
Cara

This leave-on treatment has helped my color-treated, thinning hair look thicker, healthier, and more vibrant, it’s become a key step in my daily routine.

J
Jayda

My stylist commented that my hair feels thicker and looks stronger since I started using this.

E
Emerson

My scalp feels healthier, and my hairline looks denser after a few weeks.

J
Jessica

My color stays vibrant, and this keeps my hair from looking flat.

D
Diana

It gives my hair body and movement while helping it feel healthier overall.

H
Hanna

After about a month, my hair feels stronger from root to tip and noticeably fuller.

A
Aubrey

It adds noticeable volume without weighing my hair down.

J
Jewel

I use it after the System 4 shampoo and conditioner, and my hair feels soft and full.

S
Sophia

I use it every morning, and it keeps my hair looking fresh and full all day.

A
Ariana

The formula is lightweight and easy to apply, even near the roots.

Z
Zion

I love how it makes my scalp feel clean and balanced throughout the day.

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