What constitutes a suitable dosage will depend on the condition you wish to address, for example for blood sugar effects a dose of 500mg, taken three times daily after meals, has been reported to work well. It should be noted, that there is more for us to learn with regards berberines clinical effects and more high-quality studies needed
In view of insulinoma visualization, the advantages and disadvantages of [ 18 F]FB(ePEG12)12-exendin-4 were summarized in Table 3
[Google Scholar] 112.Tang FY, Cho HJ, Pai MH, Chen YH
In an ex-vivo human study, a closely related copper tripeptide stimulated elongation of isolated human hair follicles and the proliferation of dermal papilla cells while reducing markers of cell death, according to PubMed (Pyo et al., 2007, DOI)
Depending on your results, you may wish to undergo additional injections periodically or in series to achieve desirable results.
Cancer Research Communications 3(12):2510-2517, 2023