Grape Seed Extract (Proanthocyanidins) for Antioxidant Benefits

Based on the information and product details, Grape Seed Extract containing Oligomeric Proanthocyanidins (OPCs) is indeed known for its very high antioxidant efficacy. Research supports its benefits in protecting the body and skin from free radical damage.

This strong performance is likely why it is popular among many brands.

Regarding availability, a product named Grape Seed Extract (Proanthocyanidins) is listed in the database. This extract contains OPCs and is described as having one of the highest antioxidant efficiencies among natural extracts.

As discussed, the extract is a dark brown liquid. The product description notes that using it at higher concentrations (above 0.5-2%) can significantly darken the color of cosmetic formulas, which aligns with the point raised in the conversation. However, for DIY formulations where results are prioritized, this color might be less of a concern.

Grape Seed Oil (NaturalProfile™ Grape Seed Oil (Cold-Pressed) and Grape Seed Oil (Cold-Pressed, Green)) is also available and contains antioxidants (Polyphenols), but it is an oil and distinct from the concentrated OPCs extract.