scalp hair conditioner system 4What is it: System Kit 4 is designed for colour treated hair with progressed thinning. Clinically and dermatologically tested, it's designed to amplify hair texture and strengthen resilience, resulting in thicker, fuller hair. Why you'll love it: Clinically and dermatologically tested, this shampoo nourishes and gently cleanses your hair to prevent against follicle clogging sebum, resulting in thicker, fuller hair. The conditioner enhances scalp