Nioxin System 4 scalp care and hair thickening treatment against white background

Nioxin circular white foam swatch on white surface

Nioxin System 4 kit products laid down against orange background

Nioxin System 4 Scalp and Hair Thickening Treatment old and new bottle against white background

Nioxin System 4 scalp care and hair thickening treatment against white background

Nioxin circular white foam swatch on white surface

Nioxin System 4 kit products laid down against orange background

Nioxin System 4 Scalp and Hair Thickening Treatment old and new bottle against white background

Serums & Leave-In Treatments

System 4 Leave In Treatment

FOR COLOR TREATED HAIR WITH PROGRESSED THINNING

Details: What is it: System Kit 4 is designed for natural, untreated hair with progressed thinning. Clinically and dermatologically tested.
Why you'll love it: It helps to refresh the scalp and increase the volume of every strand, leaving your hair looking fuller and thicker.
Featured ingredients: Delivers essential nutrients and antioxidants to the scalp, nourishing and protecting it against damage. This treatment contains UV protecting ingredients for the scalp and hair.
Key Benefits: THICKENS THE HAIR: clinically designed to add thickness and fullness to dry, damaged, color-treated hair with progressed thinning, with visible results in just 30 days
SUPPORTS SCALP HEALTH: gently cleanses the scalp, removing impurities and excess sebum that can clog hair follicles, creating a healthier environment for the scalp
REDUCES HAIR THINNING: helps minimize hair breakage, promoting the appearance of fuller, thicker hair while protecting the hair color
NOURISHES THE SCALP: infused with antioxidants and UV protecting ingredients, this treatment can nourish and revitalize the scalp, improving its overall health and condition
Real Results: 85% of consumers noticed a thickening effect with our hair thickening products
80% noticed an increase in hair density
80% noticed an increase in hair fullness
How to Use: Shake Nioxin Leave-In Treatment well and apply directly to the entire scalp, focusing on areas of irritation or discomfort. Gently massage and comb through. Do not rinse. For best results, use in conjunction with Nioxin System 4 Shampoo and Conditioner.

How to Use

1
Apply Nioxin System 4 Scalp + Hair Thickening Treatment to towel-dried hair, focusing on the scalp and areas of concern.
2
Massage gently to ensure even distribution.
3
Do not rinse out. Style as desired.
4
For optimal results, use alongside Nioxin System 4 Scalp + Hair Shampoo and Conditioner.

INGREDIENTS

Infused with nourishing botanicals, antioxidants, and UV protecting ingredients, this kit's Scalp + Hair Thickening Treatment can nourish and revitalize the scalp, improving its overall health and condition.

SUN PROTECTING INGREDIENTS

formulated with a common UV filter providing protection against the damaging effects of ultraviolet (UV) radiation from the sun

CAFFEINE

Stimulates hair follicles, improves blood circulation and maintains the skin barrier

MENTHA ARVENSIS LEAF OIL

Also known as wild mint oil, this oil is known for its refreshing and invigorating benefits that stimulate the scalp and promote circulation

NIACINAMIDE

A form of Vitamin B3, niacinamide helps nourish the hair root and can have a positive impact on hair growth and overall scalp health

FAQS

How do I know which System Kit is right for me?
How do I know which kit to use if I previously used System Kit 5 or 6?
How often should I use the 3-step system to see results?

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NIOXIN GROWS RESULTS

Only Nioxin's 30+ years of advanced scalp science can target hair thinning and hair loss for proven results you can see and feel.

Our Roots

It all started 40+ years ago when Eva Graham created Nioxin.

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How to Get Thicker Hair With Just a Few Simple Changes

There are a few easy steps you can follow to minimize the thinning and get thicker, fuller-looking hair. Keep reading to discover advice from our experts on how to get thicker hair.

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