Standard 500mg berberine HCl. Modest but consistent glucose-control data; sometimes called 'nature's metformin' but the comparison overshoots. NSF Quality Tested.
What it is
Thorne Berberine-500 is a category-leading product in the specialty space. Editorially-selected for berberine, metabolic use cases. The label declares third-party testing where applicable.
Suggested use
Follow label dosing. As with any supplement, talk to a clinician before starting if you take prescription medications or have a chronic condition.
A note on selection
We list products that have a real track record (years of use, real users, published research where available) and avoid the wellness-aisle proprietary blends that hide doses behind 'patented formula' language.