Gastrointestinal surgery Patients who have had a recent gastrointestinal surgery may have reduced absorption of this medicine
"Pernicious Anemia", StatPearls , Treasure Island (FL): StatPearls Publishing, PMID 31082033, retrieved July 15, 2025 "Vitamin B12 or folate deficiency anaemia Diagnosis"
You probably shouldnt
If its used for a medical procedure, it wont cause lasting effects but if its frequently used recreationally, it can seriously affect B12 levels, cause a deficiency and impair healthy functioning of the body (Campdesuner et al., 2020
A number of clinical studies established that GHK-CU stimulates the synthesis of collagen, the production of selected glycosaminoglycans (like hyaluronic acid), and modulates matrix metalloproteinases (MMPs)
How does BPC 157 help with tendon recovery