Nioxin 3-Part System 3 is specifically formulated for colored hair with light thinning. This comprehensive system aims to promote thicker-looking hair and revitalise the scalp. The Scalp Therapy Hair Thickening Treatment is designed to provide moisture balance and resilience to the hair, while protecting the scalp. It works to thicken the appearance of hair strands and enhance fullness. This trial kit offers a convenient way to experience the benefits of the Nioxin System 3 for colored and lightly thinning hair.