Unlock the secret to thicker, fuller hair with Nioxin Diaboost Hair Thickening Serum, proven to instantly boost hair diameter and protects hair against breakage, allowing it to grow longer (with daily use). Our advanced formula is specifically designed to boost hair thickness and density, giving you thicker, fuller-looking hair instantly.*

* vs non-conditioning shampoo

This powerful treatment not only enhances the thickness of your hair but also strengthens and nourishes it from within, leaving it more manageable.

With ingredients like caffeine and niacinamide, Diaboost thickens the hair at the roots whilst also protecting against hair breakage. 

1.  Apply a small amount of the serum directly to your scalp.
2.  Gently massage the serum into your scalp using circular motions.
3. Do not rinse out.
4.  For best results, use daily as part of your hair care routine.