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Behind the products

Know who’s behind the bottle.

Compare supplement brands by product quality, testing transparency, manufacturer information and the products we track.

Top-rated brands

Highest average product scores among brands with at least three scored UK products.

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Product averages describe our tracked sample, not every product a brand sells. Scores may be provisional while testing is pending; category and dose differences still matter.

Browse all brands

Explore brands with published products available in this region.

191 brands

Established coverage: 5+ tracked products. Limited coverage: 1–4. Verified testing means at least one tracked product has verified independent evidence or recognised certification. “All product testing reviewed” requires approved evidence reviews for every tracked product; it does not mean every product is independently tested. Brand records without published regional products are omitted.

Why brand transparency matters

How we verify testing →

Company transparency

Know who owns the brand, where it manufactures and how to contact it.

Testing evidence

Manufacturing claims differ from product testing. Evidence and policies can vary between products.

Tracked product quality

Compare the products in our analysis. Affiliate relationships never affect our scores.