
Nioxin Diameter System 3 Scalp & Hair Treatment (Colored Hair, Light Thinning, Color Safe) 200ml
Nioxin Diameter System 3 Scalp & Hair Treatment (Colored Hair, Light Thinning, Color Safe) 200ml
Designed for colored hair with light thinning, Nioxin Diameter System 3 Scalp & Hair Treatment delivers thicker-looking, fuller hair without washing away the color you love.
Key Features
- Step 3 of the 3D Care System Kit for targeted thinning concerns
- Specially designed for colored hair with light thinning
- Transactive Delivery System 2.0 to support thicker-looking hair
- Increases the fullness of each hair strand
- Hair appears thicker and denser-looking with vibrant color
- Color-safe formula that protects treated color
- No rinse—shake well, apply evenly to the scalp, and go about your day
- Size: 200 ml for convenient long-term use
Performance / Benefits
This treatment targets thinning at the scalp to deliver an appearance of fuller, more voluminous hair. By supporting each strand with a color-safe formula, it helps maintain vibrant color while creating a denser look. The no-rinse application makes it quick and easy to integrate into your routine—simply shake, apply to the entire scalp, and enjoy lasting fullness without washing out your color.
Original: $63.72
-70%$63.72
$19.12More Images


Nioxin Diameter System 3 Scalp & Hair Treatment (Colored Hair, Light Thinning, Color Safe) 200ml
Designed for colored hair with light thinning, Nioxin Diameter System 3 Scalp & Hair Treatment delivers thicker-looking, fuller hair without washing away the color you love.
Key Features
- Step 3 of the 3D Care System Kit for targeted thinning concerns
- Specially designed for colored hair with light thinning
- Transactive Delivery System 2.0 to support thicker-looking hair
- Increases the fullness of each hair strand
- Hair appears thicker and denser-looking with vibrant color
- Color-safe formula that protects treated color
- No rinse—shake well, apply evenly to the scalp, and go about your day
- Size: 200 ml for convenient long-term use
Performance / Benefits
This treatment targets thinning at the scalp to deliver an appearance of fuller, more voluminous hair. By supporting each strand with a color-safe formula, it helps maintain vibrant color while creating a denser look. The no-rinse application makes it quick and easy to integrate into your routine—simply shake, apply to the entire scalp, and enjoy lasting fullness without washing out your color.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Designed for colored hair with light thinning, Nioxin Diameter System 3 Scalp & Hair Treatment delivers thicker-looking, fuller hair without washing away the color you love.
Key Features
- Step 3 of the 3D Care System Kit for targeted thinning concerns
- Specially designed for colored hair with light thinning
- Transactive Delivery System 2.0 to support thicker-looking hair
- Increases the fullness of each hair strand
- Hair appears thicker and denser-looking with vibrant color
- Color-safe formula that protects treated color
- No rinse—shake well, apply evenly to the scalp, and go about your day
- Size: 200 ml for convenient long-term use
Performance / Benefits
This treatment targets thinning at the scalp to deliver an appearance of fuller, more voluminous hair. By supporting each strand with a color-safe formula, it helps maintain vibrant color while creating a denser look. The no-rinse application makes it quick and easy to integrate into your routine—simply shake, apply to the entire scalp, and enjoy lasting fullness without washing out your color.



















