What is it: an advanced leave-in hair treatment designed to nourish and strengthen your hair from the root to tips. The treatment works by strengthening weak, fragile strands, promoting a healthy environment for hair growth. Why you'll love it: protects the thickness of the hair strand and forms a protective barrier against hair damage to the follicle. Featured Ingredients: Formulated with powerful ingredients like wild mint oil, panthenol, and peppermint oil. Key benefits: PROTECTS HAIR FOLLICLE: creates a barrier for hair cuticles, protecting them against any damage. PROTECTS HAIR THICKNESS: This advanced treatment protects the diameter of hair strands, making the hair look thicker. TARGETED SOLUTION: Formulated specifically for progressed thinning hair, it provides a targeted solution for areas of concern like receding hairlines or thinning crown. EASY APPLICATION: With its convenient leave-in formula, the serum can be seamlessly integrated into your daily hair care routine. Simply apply to the roots and leave in, without the need for rinsing. SCIENTIFICALLY PROVEN RESULTS: Backed by years of research and development, our Hair Booster Serum has been scientifically tested to improve the appearance of thinning hair, delivering visible results and a noticeable difference. How to use: Massage twice daily into areas of concern. Distribute through hair using fingertips, from the roots to the tips at areas of low density and along the hairline. If you are using a Nioxin System Kit, apply the Hair Booster Serum before applying the Scalp Care + Hair Thickening Treatment from your System Kit.