nutricosmetic adjective 1noun 1forms 1 adjective1 •Of or pertaining to nutricosmetics. noun1 •A dietary supplement, food or beverage with additives that are marketed as having medical benefits that enhance appearance, especially skin, nails, and hair.Incorporating marine proteoglycans as a nutricosmetic in skin capsules is said to boost collagen, help strengthen cell cohesion, and improve skin density, creating firmer skin. — 2013 formsnutricosmetics