Grape Processing By-Products as Active Ingredients for Cosmetic Proposes

The demand for cosmetics with natural ingredients is stronger than ever, being now widely considered a serious challenge to the worldwide economy and society. In the field of wine making, grape processing by-products represent a major environmental issue. Some studies have been carried out on these residues regarding phytochemicals identification and biological evaluation. High added-value ingredients for cosmetics formulations can be obtained by recovering bioactive compounds from these substrates. The bioactive compounds present are mainly polyphenols (such as catechin, epicatechin, gallic acid, and resveratrol), fatty acids and vitamins. Indeed, taking into account its composition and sustainability issues, the recovery of target compounds from these disposal residues is advisable. Particularly, the cosmetic field may benefit from these materials. This chapter aims to revise the potential applications of bioactive compounds from grape processing by-products as active ingredients for skin care products. Their potential emollient, antiwrinkle, or antioxidant activity is critically reviewed and discussed. Also, the review of the most important cosmetic brands that already use grape on their formulations is denoted.