Research-backed herb with potential health benefits.
Good choice for antioxidant support and vascular health.
Limited data. Generally considered safe at normal doses, but consult your doctor.
Extracted from grape seeds. The number likely refers to a specific standardization.
Click through to the studies bar for the evidence base.
See the dosing guide below.
Compare formats before buying.
Some ingredients build up over weeks. Others act fast.
The compound effect of consistent dosing.
Check the cautions section if you have a pre-existing condition.
Some ingredients you feel. Others just work in the background.
Any quality grape seed extract standardized to OPCs. Pine bark extract has similar benefits.
Varies. Most supplements need weeks to months.
Possibly. Check dietary sources.
Pending comprehensive analysis.
Various sources
Ih636 Grape Seed Proanthocyanidin Extract interacts with other supplements and meds. The analyzer flags interactions, dose mismatches, and timing collisions across your whole list.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.