Grape Seed Extract
Powerful antioxidant for cardiovascular and skin health
Also known as: GSE • Vitis vinifera seed extract • OPC
Overview
Grape seed extract is derived from the seeds of wine grapes and is one of the most potent natural sources of proanthocyanidins — a class of polyphenols with exceptional antioxidant activity. These oligomeric proanthocyanidins (OPCs) have been shown to be 20-50 times more potent than vitamins C and E as antioxidants in some laboratory assays. The primary health benefits center on cardiovascular protection, where it may help reduce blood pressure, improve endothelial function, and protect LDL cholesterol from oxidation. It also shows promise for skin health, supporting collagen stability and protecting against UV-induced damage. Grape seed extract has been extensively studied in Europe, where it is approved as a treatment for chronic venous insufficiency in several countries.
Key Benefits
Cardiovascular Protection
Multiple studies show grape seed extract can reduce blood pressure and improve blood flow.
Potent Antioxidant
OPCs neutralize free radicals more effectively than many other antioxidants.
Skin Health
Supports collagen and elastin stability, may reduce UV damage.
Anti-Inflammatory
Research indicates grape seed extract can reduce markers of inflammation.
Dosage & How to Take
100-300 mg per day of standardized extract
| Purpose | Dose | Notes |
|---|---|---|
| General antioxidant support | 100-200 mg/day | Standardized to 95% OPCs |
| Cardiovascular health | 200-300 mg/day | May take 4-8 weeks for effects |
Best Time to Take
With meals for better absorption
With or Without Food
Yes, take with food
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Standardized Extract (95% OPC) | High | Maximum potency | Most studied form |
| Whole Grape Seed Powder | Low-Medium | Budget option | Less concentrated |
Side Effects & Safety
Common
- Mild headache
- Nausea
Rare
- Allergic reaction (grape allergy)
Contraindications
- Grape or wine allergy
- Upcoming surgery
Interactions
May increase bleeding risk
Additive anti-platelet effects
Scientific Research
Grape Seed Extract and Blood Pressure
Meta-analysis of 16 RCTs found GSE significantly reduced systolic and diastolic blood pressure
OPCs and Skin Aging
12-week supplementation improved skin elasticity and reduced UV-induced erythema
Food Sources
Products With Grape Seed Extract
7 products in our database contain this ingredient
Frequently Asked Questions
Medical Disclaimer
This content is for educational and informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions or are taking medications. The statements on this page have not been evaluated by the Food and Drug Administration.