What It Actually Is
Grape Seed Extract is concentrated from the seeds of grapes, rich in oligomeric proanthocyanidin complexes (OPCs) — a class of antioxidant compounds.
What Research Generally Shows
Grape seed extract has a reasonable research base for antioxidant activity and some studies on circulatory support.
On The Dose
50mg is a standard, commonly-used amount for grape seed extract in supplement formulas, generally in line with typical category doses.
