
Berberine has exploded in popularity for blood sugar, weight, and metabolic support. As interest has grown, so has the number of new brands selling berberine on Amazon — many with very high milligram claims and dramatic promises.
One of these brands is CaelumCore Liposomal Berberine HCL 1500 mg, which is sold widely on Amazon and other marketplaces but does not appear to have a standalone company website. More concerning, independent lab testing by a third-party organization found that this product contained only a tiny fraction of the berberine listed on its label.
If you search online for “CaelumCore” or “Caelum Core Liposomal Berberine,” you will find:
But what you won’t find is a clear, dedicated company site such as caelumcore.com with:
This doesn’t automatically prove a product is bad, but it is a major transparency red flag. It means you are trusting the label on the bottle without any real way to verify who is responsible for it.
SuppCo is an independent supplement testing and comparison platform. They purchase products directly (as a normal consumer would), send them to an ISO 17025 accredited lab, and publish the results.
According to SuppCo’s published data for Caelum Core Liposomal Berberine 1500 mg, the product was listed in their “Failed Products” section because it did not contain anywhere near the amount of berberine claimed on the label:
You can view the independent test information using the following links:
Adding to the confusion for consumers, CaelumCore Liposomal Berberine is currently listed as Amazon’s “Overall Pick” for the high-traffic search term “natural GLP” and similar GLP-1-related queries. Amazon awards this badge algorithmically based on sales velocity, click-through rate, pricing, and engagement, not on third-party testing or ingredient verification.
According to marketplace analytics estimates, this product sells more than 3,000 bottles per month on Amazon. This means a supplement that independent lab testing found to contain only about 1% of its labeled berberine content is still being actively promoted by Amazon as a top choice under a trending metabolic keyword.
This illustrates how quickly an online supplement brand can gain traction — even without a company website, published COAs, or verified potency.
Many shoppers assume that Amazon’s “Overall Pick” badge reflects product quality, verified testing, or expert review, but the badge is generated entirely by Amazon’s internal algorithm. It does not evaluate whether a supplement actually contains the ingredients or doses listed on the label.
For the search term “natural GLP,” CaelumCore’s listing likely rose in Amazon’s system simply because shoppers clicked and bought it at a high rate, not because the product passed any kind of quality evaluation. This is how a supplement can fail independent testing yet still be promoted by Amazon as an “Overall Pick.”
Earth Clinic is not affiliated with SuppCo and does not run these lab tests. We are simply reporting what an independent testing organization found. Any concerns or questions about methods and data should be directed to SuppCo.
However, if a product truly contains only about 1% of the active ingredient stated on the label, it is not delivering what you are paying for and may give you a false sense of security about your health regimen.
CaelumCore is just one example of a broader pattern. Many supplements sold on Amazon and other online marketplaces today are:
While some marketplace brands are excellent and transparent, others exist only as a logo, a label, and a listing. If they disappear, there is no real company “home base” for you to contact or hold accountable.
Whether you are considering CaelumCore or any other brand, here are practical steps to protect yourself:
If you are taking berberine for blood sugar or metabolic support, a product containing only a tiny fraction of the labeled amount can:
The issue is not berberine itself, but quality control and labeling honesty.
CaelumCore’s failed lab test is not just about one brand. It highlights a growing issue in the online supplement industry: sometimes, what’s in the bottle simply does not match what the label promises.
Earth Clinic encourages readers to research carefully, seek transparency, and choose reputable supplement brands backed by real testing and accessible customer support.
Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting or changing any supplement or treatment.
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