Formula - per 5 cap serving
Studies on the active ingredients:
Berberine
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2410097/
ALA
https://www.ncbi.nlm.nih.gov/pubmed/21666939
Cinnamon
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2901047/
Bitter Melon
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4027280/