A daily volumizing cleanser that gently removes residue and DHT from the scalp and hair to promote a healthy scalp environment. It also provides nourishing vitamins, proteins and amino acids. System 1 is specially designed for normal to thin-looking, fine, natural hair. It amplifies hair texture while refreshing the scalp and delivering a healthy shine. How it works: BioAmp adds thickness and strength. Activ-Renewal gives a more youthful-looking scalp and fuller, healthier looking hair. Transactive Delivery System delivers essential nutrients onto the scalp which improves the appearance of thinning hair and creates an environment for fuller, healthier looking hair. Hair types: For fine, natural, normal to thin-looking hair. 9 out of 10 people perceive a thickening effect when using the daily 3-Part System.