NuviaLab Keto Review 2026An Honest Look at the Label

What is in it, per 2 capsules: coleus (forskolin) extract 250 mg, garcinia cambogia extract 250 mg (150 mg hydroxycitric acid), guarana 200 mg (44 mg caffeine), green tea extract 100 mg (40 mg EGCG), cayenne extract 20 mg, black pepper extract 5 mg, vitamin B6 1.4 mg and chromium 40 µg.

What the evidence says:

• In the main garcinia trial, 1,500 mg of hydroxycitric acid a day did not beat placebo for weight loss; Keto's 150 mg is 10% of that dose.
• Forskolin is at half the dose of the trial that found fat loss; a second trial, in women, found no weight loss.
• Cochrane found no weight effect from green tea in trials outside Japan.
• The sales page's "5 kg in 1 month, 11 kg in 2 months" chart has no source.

There is no money-back guarantee; the terms allow 10 days from purchase.

Our Dose Check compares each label amount with the best human study we could read.

• Garcinia: 250 mg of extract at 60% HCA, 150 mg of HCA, vs 1,500 mg of HCA a day in the 1998 trial, which found no benefit over placebo. 10%.
• Forskolin: 250 mg of extract (about 25 mg forskolin, our calculation) vs 500 mg a day in the 2005 trials. 50%.
• Guarana: 200 mg at 22%, 44 mg of caffeine, 11% of the 400 mg a day the FDA cites for most adults.
• Green tea: 100 mg of extract, 40 mg of EGCG. The EFSA links 800 mg EGCG a day and above to raised liver enzymes; the label is 5% of that.
• Cayenne: 20 mg at 2%, about 0.4 mg of capsaicin (our calculation). The meta-analysis abstract gives no dose.
• Chromium: 40 µg vs 200 to 1,000 µg a day in the Cochrane trials. 20% of the lowest dose.
• Vitamin B6: 1.4 mg, the NHS daily amount for men (1.2 mg for women).
• BHB salts and MCT oil powder: 0. They are not in the product.

The directions say 2 capsules a day with about 300 ml of water. A bottle of 60 capsules lasts a month, not 15 days as an earlier version of this review said.

Our Transparency Score checks five things a buyer can verify. NuviaLab Keto scores 2 out of 5.

• Label with doses: yes. All eight actives have an amount in the text panel.
• Identifiable company: no. The Swiss and German terms name "Key Player Limited" at Dubai Airport Freezone and apply UAE law; the English terms name "NuviaLabKeto.com" in Hong Kong. Both exclude EU law. No manufacturer or registration number is given.
• Refund terms in writing: yes. 10 calendar days from purchase, unused goods only.
• Independent testing shown: no. No lab report and no GMP claim on the official pages.
• Study on the finished product: no. The sales page says the effectiveness of ForsLean "has been confirmed in clinical studies" and shows a weight-loss chart, with no source for either.

NuviaLab, the co-seller, has 1.9 out of 5 from 148 reviews on Trustpilot; complaints concern refunds and returns.

Correction. An earlier version of this review listed BHB salts 800 mg and MCT oil powder 300 mg (neither is in it), gave chromium as 200 mcg and green tea as 150 mg (the label says 40 µg and 100 mg), said to take 2 capsules twice a day and that 60 capsules last 15 days (the label says 2 capsules a day for 30 days), said the maker publishes a certificate of analysis and follows GMP (no official page says so), recommended a third-party chromium product, scored it 3.9 out of 5 in the box, and showed a 90-day guarantee and free shipping. The real US prices are $49.99, $99.98 and $149.97, and there is no guarantee. We have corrected it.

Prices when we checked in September 2026:

• Swiss site (where our link leads, in German): CHF 49.99 for 1 bottle, CHF 99.98 for 2+1 (CHF 33.33 each), CHF 149.97 for 3+3 (about CHF 25 each).
• US site: $49.99, $99.98 ($33.33 each) and $149.97 ($25.00 each). NuviaLab's own store lists the same US prices.

That is about $1.67 a day for one bottle and $0.83 a day for the six-bottle pack (our calculation). We could not verify shipping costs.

Refunds. The pages offer no money-back guarantee. The English terms say the customer may withdraw only "within 10 calendar days from the date of purchase of goods", that returns "must be preceded by a written statement" and that goods "can not bear traces of use". They add: "The application of EU law is not possible." NuviaLab's own store allows 14 days from receipt and excludes "any opened and used cosmetics, tablets or supplements".

• Garcinia: LiverTox links garcinia weight-loss products to acute liver injury that "can be severe and even fatal". In the 2011 meta-analysis, gastrointestinal adverse events were twice as common with HCA in one trial. The label has no liver warning.
• Caffeine: 44 mg per serving, well under the FDA's 400 mg a day. The label says not to use it in cardiovascular disease.
• Forskolin: in the 12-week trial in 23 women, blood markers, blood pressure and reported side effects showed no clinically significant changes; we read no longer-term data.
• Green tea extract: 40 mg of EGCG is well below the 800 mg the EFSA links to raised liver enzymes.
• Chromium and vitamin B6: 40 µg and 1.4 mg are small amounts (the NHS says 10 mg or less of chromium a day is unlikely to cause harm).

The sales page says the capsules "should not cause any side effects". There is no clinical study of NuviaLab Keto itself.