Nioxin Diamax Advanced Hair Thickening Serum by Nioxin | Hair Thickening Serum, Diameter Boost, Breakage Protection

Everyday boost for thinning hair

This leave-in hair thickening serum visibly increases the diameter of existing strands, making hair look fuller and more substantial at the roots. It has a lightweight, absorbent feel and goes on without rinsing, creating a base that supports strength with every application. Powered by caffeine and niacinamide, this formula targets thinning areas while helping protect hair from breakage and dryness. Ideal for daily use on damp or dry scalp, it boosts thickness while leaving hair manageable and ready for styling.

Daily application helps maintain a healthy-looking scalp and reduces the appearance of thinning over time. Easy to integrate into your routine, it supports confidence with fuller-looking hair.

• Diameter Boost: visibly increases the thickness of each hair strand for fuller-looking hair
• Breakage Protection: strengthens strands to help reduce breakage during styling and daily wear
• Lightweight Leave-In: non-rinse formula that absorbs quickly without weighing hair down
• Daily Use: simple daily application directly to scalp supports routine thickness goals
• Caffeine + Niacinamide: key ingredients help energize the scalp and nourish roots

3.38 oz / 100 ml