For ligament work, the canonical reference is Cerovecki and colleagues 2010 study of medial collateral ligament transection in rats, in which intraperitoneal, oral (drinking water), and topical BPC-157 administration each produced consistent improvements in functional, biomechanical, macroscopic, and histological healing endpoints over a 90-day window (Cerovecki et al., 2010)
and anyone who has not discussed research peptides with a licensed clinician
The treatment of cognitive dysfunction in dementia: A multiple treatments meta-analysis
Unfortunately, there is no reliable home test for potency
We've got BPC-157, which you can just basically frame up in your mind as promoting angiogenesis and wound repair through a variety of mechanisms, but mainly the addition of new vasculature to the wound site