What the rules say, and what most runners actually need BPC-157 has been on WADAs prohibited list since January 2022 under category S0, non-approved substances
Patients with controlled uric acid level and doing well on allopurinol would seem to have no reason to switch to this new agent, in view of allopurinol's lower cost and 40-year history of an overall very good safety record (see "Allopurinol" discussion above)
These dissolve normally in the stomach rather than using delayed release technology
For skin-focused goals, the combination approach of injectable plus topical makes theoretical sense and receives positive anecdotal reports
Dinan TG, Stilling RM, Stanton C, Cryan JF (2015) Collective unconscious: how gut microbes shape human behavior
Anti-aging properties, body tissues regeneration, hormonal balance, the list of potential uses is endless