What it is:
Nioxin System 4 Scalp Treament - SPF 15 is an intense leave-in scalp treatment especially formulated for noticeably thin-looking, chemically enhanced hair (see more scalp than hair).
What it does:
It provides scalp and hair protection from damaging chemical residue, environmental toxins and DHT buildup.
What else you need to know:
This unique foam nourishes scalp and hair with powerful chaperone molecules ensuring scalp assimilation of essential vitamin nutrients.