The NIOXIN System 4 Duo is a professional hair care set specifically designed for noticeably thinning, fine, chemically-treated hair. This duo includes a cleanser and scalp therapy conditioner that work together to remove follicle-clogging sebum, fatty acids, and environmental residues, while amplifying hair texture and providing moisture balance. NIOXIN System 4 Duo helps create a healthy scalp environment and leaves the hair looking thicker and fuller.

• Removes follicle-clogging sebum, fatty acids, and environmental residues
• Amplifies hair texture and thickness
• Provides moisture balance for chemically-treated hair
• Creates a healthy scalp environment
• Leaves hair looking thicker and fuller

NIOXIN System 4 Duo is formulated with a combination of effective ingredients:

• BioAMP Technology: Strengthens and thickens the hair
• Glyco-Shield Technology: Protects and refreshes the scalp
• Scalp Access Delivery System: Provides nutrients to the scalp and hair follicles
• UV Defense Ingredients: Protect the hair from the sun's harmful rays

For a full list of ingredients, please refer to the product packaging.

For optimal results with NIOXIN System 4 Duo, follow these steps:

1. Apply the cleanser to wet hair, gently massaging it into the scalp and hair.
2. Rinse thoroughly.
3. Apply the scalp therapy conditioner to the scalp and hair.
4. Leave it on for 1-3 minutes.
5. Rinse well.

For best results, use the NIOXIN System 4 Duo regularly as part of your hair care routine.

Can NIOXIN System 4 Duo be used on color-treated hair?

Yes, NIOXIN System 4 Duo is suitable for use on color-treated hair. It helps maintain the vibrancy of the hair color while addressing thinning concerns.

How often should I use NIOXIN System 4 Duo?

For optimal results, use NIOXIN System 4 Duo daily or as recommended by your hair care professional.

Is NIOXIN System 4 Duo suitable for men and women?

Yes,NIOXIN System 4 Duo is suitable for both men and women. It is designed to address thinning, fine, and chemically-treated hair concerns in individuals of all genders.