These are similar to vitamin B12, but theyre not bioavailable and so will not improve your intake of the vitamin
Besides counteraction of bleeding aspirin-gastric ulcers (14), BPC 157 also counteracts other NSAIDs-toxicity, using the same dose range (8-14), namely, gastric and small intestine ulcers (i.e., induced by indomethacin, diclofenac, ibuprofen, celecoxib (8-14)), hepatotoxicity (paracetamol, diclofenac, ibuprofen, celecoxib) (8-14) and encephalopathy (paracetamol, diclofenac, ibuprofen, celecoxib) (8-14)
Supplemental report #168141 documents batch PP2602-012AB at 99.786% HPLC purity with 54.14mg reported GHK-Cu content
Pro Tips Look for "GHK-Cu" specifically on the ingredient list: Some brands use generic terms like "copper peptides" but use cheaper, less effective copper complexes
Sources: Here's a comparison of TB-500 (Thymosin Beta 4) and BPC 157 based on insights from Mechanism of Action BPC 157 : Primarily promotes angiogenesis (the formation of new blood vessels) and wound healing through various mechanisms
Reddy 2011a