Compare every Polyphenols product across UK retailers on Suppio, ranked by true value - price per active dose, not pack size. Prices refreshed daily.
Plant antioxidants that combat oxidative stress
We rank Polyphenols by price per gram of active ingredient - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
Polyphenols are a large group of naturally occurring compounds found in plants. They act as antioxidants, which are substances that help protect the body from oxidative stress. Oxidative stress happens when there is an imbalance of free radicals, which are unstable molecules that can damage cells.
These compounds are used to combat the damage caused by free radicals in the body. By reducing oxidative stress, they are intended to support overall cellular health and protect tissues from wear and tear.
To create a supplement, manufacturers extract these compounds from plant sources like fruits, vegetables, or tea. The plant material is processed using solvents to pull out the active polyphenols, which are then concentrated and dried into a powder. This powder is then put into capsules or tablets for sale.
The cost of these supplements is generally mid-range. This is because the price depends on the complexity of the extraction process and the cost of sourcing high-quality plant materials.
| Purpose | Typical studied dose | Evidence |
|---|---|---|
| endothelial-dependent vasodilatation | 500 mg per day total flavonoids or 300 mg per day of procyanidins | established |
| muscle recovery and exercise performance | at least 1200 mg polyphenols per day | emerging |
| sleep quality | 85 micrograms | limited |
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.
Plant antioxidants that combat oxidative stress
We rank Polyphenols by price per gram of active ingredient - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.