Nioxin System 4 Scalp + Hair Shampoo for Color-Treated Hair | Thicker, Fuller Look

Overview

Nioxin System 4 Scalp + Hair Shampoo is designed for color treated hair experiencing progressed thinning. This cleansing step aims to purify the scalp and hair surface while supporting a thicker, fuller appearance over time. The formula is tailored to respect color while preparing hair for the next stages of a complete thickening regimen.

Why it Works for Color Treated Hair

With Pro-Color Shield technology, the shampoo helps remove sebum, fatty acids and environmental residues that can dull hair strands. The derma-purifying action cleanses both scalp and hair, leaving a refreshed canvas for the subsequent thickening treatments in the system. It’s designed to feel gentle on chemically treated hair while delivering a clean, invigorated sensation after each wash.

What It Does

• Thickens the hair by design, with visible results often noted in about 30 days.
• Supports a healthier scalp by cleansing impurities and excess sebum that can clog follicles.
• Minimizes breakage risk by strengthening resilience during cleansing.
• Nourishes the scalp with botanicals and antioxidants, plus UV protection for color care.

How It Fits in a Regimen

System 4 is the first step in a three-part regimen designed to strengthen hair and amplify structure. Used alongside the Scalp Therapy Conditioner and Scalp and Hair Treatment, it creates a foundation for thicker-looking hair and a more confident feel. The formula emphasizes cleansing while preserving color integrity, so you can maintain shade while you care for your scalp.

Key Benefits You Might Notice

• More volume and fullness in dry, damaged, color-treated hair after consistent use.
• Cleaner scalp with reduced residue and environmental buildup.
• Improved hair feel and manageability as you continue the routine.
• Color protection features help maintain shade while you cleanse.

How to Use for Best Results

For best results, apply to wet hair, gently massage into scalp and hair, lather for about 1 minute, then rinse thoroughly. Use daily and follow with the System 4 Scalp Therapy Conditioner and Scalp and Hair Treatment for a complete routine.

About Nioxin

Nioxin brings more than 25 years of salon experience to thinning hair. The brand emphasizes scalp health as a foundation for fuller-looking hair, supported by professional insight and ongoing product development.