The Ordinary Natural Moisturizing Factors + HA for hair and scalp is a milky emulsion developed to moisturize the scalp and promote hair and scalp well-being. The formula contains a combination of ingredients that mimic the action of natural moisturizing factors (NMF) and hyaluronic acid (HA), which are produced naturally in the skin. The ability of NMF and HA to bind water and provide a long-lasting moisturizing effect helps maintain the protective function of the scalp and promotes healthy hair. Vegan.