The Ordinary Natural Moisturizing Factors + HA Scalp Treatment is a milky emulsion designed to moisturize the scalp to support scalp and hair health. This formulation contains a combination of ingredients that mimic the function of natural moisturizing factors (NMF) and hyaluronic acid (HA), which are naturally produced in the skin. The ability of NMF and HA to bind and retain water provides long-lasting hydration to the scalp. This helps maintain the scalp's barrier function and contributes to the healthy appearance of hair.