NIOXIN SYSTEM 1 Leave-in Treatment – System 1 for natural hair with moderate hair loss

The leave-in treatment from the Nioxin System 1 kit is designed to target moderate hair loss in natural hair. It is the final step in the Nioxin 3-step care routine. It enhances the thickness and density of your hair. Clinically and dermatologically tested. 

Its lightweight formula adds body to your hair, giving your hair a denser, fuller appearance. Formulated with a powerful combination of niacinamide, wild mint oil and caffeine to help nourish the hair roots, stimulate the hair follicles and strengthen the hair.  

Shake the leave-in treatment well and apply it directly to the entire scalp, paying particular attention to areas of irritation or discomfort. Massage gently and comb through the entire length of the hair. Do not rinse. For best results, use in conjunction with System 1 shampoo and conditioner.

Discover Nioxin, the world’s No. 1 professional brand¹  for thicker, denser and healthier hair².
A pioneer of a revolutionary philosophy: “It all starts with a healthy scalp!”
Thanks to over 35 years of clinical research, Nioxin transforms its scalp expertise into genuine innovations with proven results. Because everyone deserves healthy hair, Nioxin is committed to delivering visible results! 30 days to see a difference? Nioxin supports you with unique kits and expert haircare solutions for thicker, denser, healthier hair in as little as 30 DAYS³. Clinically proven.

¹The No. 1 professional brand, global sales.
²According to data from Kline & Company. ​
³Based on a survey conducted by SIRS in the United States in 2016 amongst 230 users concerned about hair loss (each of whom tested one Nioxin routine).