Buy Cocoa flavanols

Products that match the form and dose used in the studies. Umbral earns a commission on some purchases; the order never changes because of it.

Moderate

500-750 mg total cocoa flavanols/day. The dose-response is an inverted U with the peak near 710 mg — more is not better.

Ratings, prices and photos were read from Amazon on Sep 18, 2026. Amazon prices change; the current one is on the product page.

As an Amazon Associate, Umbral earns from qualifying purchases. Product data is provided by Amazon and may change; ratings and prices shown are Amazon’s, not Umbral’s. Recommendations are based on the evidence grade and the form used in trials, never on commission.

Black Forest High Flavanol Cocoa Powder, 1200 mg Flavanols

4.4(2,875)

$39.96

Non-alkalised, which is the whole point: Dutch processing destroys the flavanols you are buying it for. The best-selling cocoa flavanol product here.

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Amazon price on Sep 18, 2026.

CocoaVia Cocoa Flavanols 500 mg, Heart and Brain Support

4.3(1,967)

$49.99

This is the COSMOS formulation — 500 mg of flavanols with the epicatechin content declared. It is the material the large cardiovascular trial actually used.

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Amazon price on Sep 18, 2026.

CocoaVia Ultra 750 mg Cocoa Flavanols

4.3(995)

$53.99

The higher-dose version of the same extract, for the upper end of the 500–750 mg range. There is no evidence that going past 750 mg adds anything.

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Amazon price on Sep 18, 2026.

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What to look for

✓Cocoa extract standardised to total cocoa flavanols with a declared (−)-epicatechin content — 500 mg flavanols including 80 mg epicatechin per day (the COSMOS formulation). Never Dutch-processed/alkalised cocoa, which destroys the flavanols; chocolate bars are a poor delivery vehicle.
✓500-750 mg total cocoa flavanols/day. The dose-response is an inverted U with the peak near 710 mg — more is not better.
✓Third-party tested (USP, NSF, Informed Sport)

What to avoid

✕Proprietary blends that hide the dose per ingredient
✕Unstandardised extracts with no active-compound percentage

Safety notes

· Cocoa extract carries caffeine and theobromine and can disturb sleep if taken late in the day.
· Nausea was reported slightly more often than placebo in COSMOS; GI complaints in ~1% vs 0.4% in the Cochrane review.
· Cocoa products can carry cadmium — prefer brands with third-party heavy-metal testing. Cocoa is also a recognised migraine trigger for some people.

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As an Amazon Associate, Umbral earns from qualifying purchases. Product data comes from Amazon and may change; ratings and prices are Amazon's, not Umbral's. Suggestions are based on the science and the form used in studies, never on commission.

Umbral is a wellness product, not a medical device. It does not diagnose, treat, cure or prevent any disease. Supplement information is educational; talk to a clinician before starting anything, especially if you are pregnant, under 18, managing a condition or taking medication.

These statements have not been evaluated by the Food and Drug Administration.