The best answer to GHK-Cu vs BPC-157 is: GHK-Cu is better for skin, collagen, fibroblast activity, scar support, and cosmetic-oriented regeneration research
The body is processing a wave of apoptotic cells, and this is immunologically demanding

Several surgical options are available: ablation of the ulcerative lesions in the bladder, resection of ilioinguinal and iliohypogastric nerves, reconstructive surgery, and cystectomy.11 In a review of 450 patients with severe interstitial cystitis who had undergone an operation, surgery was associated with a complication rate of 26.5% with an overall mortality of 1.3%.12 History of BPC-157 In 1993, Predrag Sikiri, MD, PhD, of Croatia isolated the peptide Body Protective Compound 157 (BPC-157) from human gastric juice.13 In animal studies, BPC-157 has been shown to have many restorative properties.14 It can help with repairing tendons, ligaments, muscles, nerves, bone fractures, teeth, and corneas and promote recovery from traumatic brain injury.15-25 BPC-157 has been shown to reduce inflammation in different animal models.26,27 The pharmacokinetics, excretion, metabolism, and distribution profiles of BPC-157 were performed in rats and in beagle dogs

Confirm the amount in the vial (commonly 5 mg or 10 mg)
Check the labels for "phospholipid" or "liposomal" to ensure you are getting the best value for your health
Individual results may vary, and not all treatments discussed are appropriate for all individuals