Last verified: 17 days ago
Grapeseed Oil
Also known as: Vitis vinifera seed oil, GSO, grape seed oil
Evidence under review. — Not yet rated
Plant oil rich in polyunsaturated fats. Limited evidence for skin benefits; weak data for metabolic effects.
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What it does
Grapeseed oil is a plant-derived oil pressed from grape seeds, rich in polyunsaturated fatty acids (mainly omega-6 linoleic acid). When applied topically in a specialized nanoemulgel formula, a...
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Evidence quality
Evidence base hasn't been formally rated yet. See research below.
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Clinical dose
No established dose
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Found in
What the Science Says
Grapeseed oil is a plant-derived oil pressed from grape seeds, rich in polyunsaturated fatty acids (mainly omega-6 linoleic acid). When applied topically in a specialized nanoemulgel formula, a small clinical study found it reduced skin melanin, redness, sebum, and pore size while improving moisture and elasticity over 12 weeks. As a dietary fat, it performed similarly to other unsaturated oils in postprandial blood sugar and triglyceride studies, with no standout metabolic advantage over alternatives like olive oil.
What It Doesn't Do
Won't melt belly fat — the one massage study used grapeseed oil as a control, meaning the aromatherapy oils did the work, not grapeseed oil. No evidence it boosts heart health better than other cooking oils. No proof it detoxes the body or fights cancer in humans. The skin benefits come from a specialized nano-formulation, not plain grapeseed oil from a bottle.
Evidence-Based Benefits
A grapeseed oil nanoemulgel improved skin moisture and elasticity over 12 weeks in a small controlled study.
Weak EvidenceEffective at: Topical nanoemulgel, applied twice daily
Supporting studies (click to view on PubMed):
Topical grapeseed oil nanoemulgel reduced sebum production and pore size in healthy volunteers.
Weak EvidenceEffective at: Topical nanoemulgel, applied twice daily for 12 weeks
Supporting studies (click to view on PubMed):
Meals containing grapeseed oil produced lower postprandial triglycerides than olive oil in healthy men.
Weak EvidenceEffective at: 40g fat per meal
Supporting studies (click to view on PubMed):
Absorption & Bioavailability
Unknown for topical absorption of the nanoemulgel formulation. As a dietary fat, it is absorbed normally like other vegetable oils, but no specific bioavailability data was provided in the studies.
Red Flags to Watch For
- High in omega-6 linoleic acid — excessive dietary intake relative to omega-3s may promote inflammation over time
- Heating grapeseed oil to 180°C significantly increases aldehyde production (up to 35-fold), which may pose health concerns with repeated high-heat cooking
- The skin study used only 15 volunteers and a specialized nano-formulation — results may not apply to plain grapeseed oil products
- Many supplement products (1000+ registered) make broad health claims not supported by the limited clinical evidence available
Products Containing Grapeseed Oil
See how Grapeseed Oil is used in these analyzed products:
Frequently Asked Questions
What does Grapeseed Oil do?
Plant oil rich in polyunsaturated fats. Limited evidence for skin benefits; weak data for metabolic effects.
What is the effective dose of Grapeseed Oil?
No established dose
Is Grapeseed Oil safe?
High in omega-6 linoleic acid — excessive dietary intake relative to omega-3s may promote inflammation over time
What doesn't Grapeseed Oil do?
Won't melt belly fat — the one massage study used grapeseed oil as a control, meaning the aromatherapy oils did the work, not grapeseed oil.
Research Sources
- PubMed
- NIH DSLD
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-05-25