What it is
Grape seed extract is obtained from the seeds of Vitis vinifera and is notable for its content of proanthocyanidins and other polyphenols, which give it strong antioxidant character. In cosmetics it is used as an antioxidant and skin-conditioning agent and can also act as a mild astringent. In sunscreens it is added as a supporting antioxidant botanical rather than as a UV filter.
Safety & warnings
Grape seed extract is generally well tolerated, though individuals reactive to grape or related plants may rarely experience sensitivity. It is not a listed fragrance allergen and the extract is not associated with clogging pores. As an extract it may include trace amounts of grape-derived components, so a patch test is reasonable for very reactive skin.
Origin & sourcing
Natural; extracted from the seeds of the grape, Vitis vinifera, often a byproduct of winemaking.
History
Grape seeds, long a byproduct of the wine industry, became a popular cosmetic raw material as interest grew in their polyphenol and proanthocyanidin content.
Questions everyone asks
What is grape seed extract used for in skin care?
It is used mainly as an antioxidant and skin-conditioning ingredient because of its high polyphenol content.
Does grape seed extract protect against UV?
No. It is included as a supporting antioxidant botanical and does not function as a UV filter.