You, L., Sar, M., Bartolucci, E., Ploch, S
Here is a link to my favorite practitioner-grade Berberine product
Ohsawa I, Ishikawa M, Takahashi K, Watanabe M, Nishimaki K, Yamagata K, Katsura K, Katayama Y, Asoh S, Ohta S
Addition of Se to feed in roosters enhanced sexual maturation and semen production, with upregulation of genes involved in testicular morphology and function, increased number of seminiferous tubule cells, viability of Sertoli cells, spermatozoa motility, viability, and percent normal spermatozoa, particularly after organic Se substitution (85)
TB-500 contains the parent molecules actin-binding region, but shared sequence does not establish equivalent behaviour