Boost the appearance of thicker, fuller hair with the Nioxin Diamax Hair Thickening Serum from Nioxin.

This lightweight leave-in treatment is designed to increase the diameter of each hair strand, helping hair instantly look denser and more voluminous. Formulated for fine or thinning hair, it helps strengthen fragile strands while improving body, texture, and manageability.

The fast-absorbing formula works without weighing hair down, making it perfect for everyday styling and long-term hair care routines.

Key Benefits

• Instantly thickens the appearance of hair
• Helps increase hair strand diameter
• Adds volume, body, and fullness
• Lightweight leave-in formula
• Helps strengthen fragile hair
• Ideal for fine or thinning hair

How to Use

Apply evenly to damp hair, focusing on roots and mid-lengths. Comb through and style as desired.