Nioxin System 1 Hair Thickening Treatment bottle against white background

two clear droplets of the Nioxin treatment serum on white surface

Nioxin System Kit 1 products laid down on yellow background

Nioxin System 1 hair and scalp thickening serum old and new bottle side by side comparison

Serums & Leave-In Treatments

System 1 Leave In Treatment

FOR NATURAL HAIR WITH LIGHT THINNING

Details: What is it: System 1 Treatment 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. Why you'll love it: Nioxin Leave-In Treatment enhances the thickness and fullness of your natural hair. The lightweight formula adds body to your hair, making it look thicker and fuller.
Featured ingredients: Formulated with a powerful blend of niacinamide, wild mint oil and caffeine to help nourish the hair root, stimulate hair follicles and strengthen the hair.
Key Benefits: THICKENS THE HAIR: clinically designed to add thickness and fullness to natural hair with light thinning, with visible results in just 30 days.
SUPPORTS SCALP HEALTH: advanced formula gently cleanses the scalp, removing impurities and excess sebum that can clog hair follicles.
REDUCES HAIR THINNING: helps minimize hair breakage, promoting the appearance of fuller, thicker hair.
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 1 Shampoo and Conditioner.

How to use

1
Apply Nioxin System 1 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 1 Scalp + Hair Shampoo and Conditioner.

Ingredients

Formulated with a powerful blend of niacinamide, biotin and caffeine to help nourish the hair root, stimulate hair follicles and strengthen the hair.

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?: 1.
For natural, untreated hair with light thinning, we recommend System Kit 1.
2.
For natural, untreated hair with progressed thinning, we recommend System Kit 2.
3.
For damaged, dry, or coloured treated hair with light thinning, we recommend System Kit 3.
4.
For damaged, dry, or colour treated hair with progressed thinning, we recommend System Kit 4.
How do I know which kit to use if I previously used System Kit 5 or 6?: We recently transitioned from 6 kits to 4 to make it even easier to navigate which kit will help you meet your hair goals. If you previously used System Kit 5, we recommend using System Kit 3. If you recently used System Kit 6, we recommend using System Kit 4.
How often should I use the 3-step system to see results?: We recommend using the complete system at least 3 times a week for visible results in 30 days.

System 1 Leave In Treatment

How to use

Ingredients

Caffeine

Mentha Arvensis Leaf Oil

Niacinamide

FAQs

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