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Resveratrol Ingredient Notes
Resveratrol is a polyphenol found in grape skins, Japanese knotweed and other plants. The full weight of a plant extract is not its resveratrol content.
Resveratrol is a polyphenol found in grape skins, Japanese knotweed and other plants. The full weight of a plant extract is not its resveratrol content.
Community experiences
Selected positive personal experiences from external communities, edited and summarized. These accounts do not establish effectiveness.
A contributor who used resveratrol occasionally described feeling a mild lift in energy and finding it easier to organize their thoughts or concentrate. They made clear that the change was not dramatic and asked about other users' experiences. Without a specific product, dose or duration, the account does not establish improvement on concentration tests or in long-term cognitive function.
Experience shared by external community contributor A
A contributor with rheumatoid arthritis wrote that joint discomfort and movement improved while taking resveratrol together with fish oil for about five years. They described being able to move joints that had long been stiff and feeling more discomfort when they paused use. Without details of other treatments or objective test results, the respective contributions of the two ingredients cannot be separated, nor can recovery from joint damage be established.
Experience shared by external community contributor B
This page is for general reference only and is not medical advice, diagnosis, treatment, or prescription. Ask a qualified professional if you need medical advice or diagnosis.
What is Resveratrol?
Resveratrol is a polyphenol found in grape skins, Japanese knotweed and other plants. The full weight of a plant extract is not its resveratrol content.
On Supplecipe, you can search iHerb products that mention Resveratrol and compare single-ingredient products against broader supplement blends.
Evidence and limitations
A placebo-controlled crossover trial in postmenopausal women found improvements in lumbar-spine and femoral-neck bone density after 12 months of resveratrol. Changes in these measures do not establish longer human lifespan or a general slowing of aging.
MSK: Resveratrol · RESHAW (2020): resveratrol and bone density
Forms and other names
Trans-resveratrol identifies an isomeric form. Grape seed extract and Japanese knotweed are not simple alternative names for resveratrol.
Related ingredients
Related reading, not a recommendation to combine supplements.
Side effects and cautions
Higher doses can cause diarrhea or other digestive symptoms. Resveratrol can affect drug metabolism; discuss medicines, particularly antiplatelet treatment, with a professional. Hormone-sensitive cancers also require professional advice.
MSK: Resveratrol · RESHAW (2020): resveratrol and bone density
How to compare iHerb products
- Distinguish plant-extract weight from the amount of resveratrol supplied. Check any separately declared trans-resveratrol amount and the number of capsules per serving.
- Look for form, serving size, extra ingredients, allergens, and whether the product is a single ingredient or a blend.
- Compare brand, price per serving, ingredient form, and single-ingredient versus complex products.
- Use the search button below to compare iHerb products that mention this ingredient.
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