If you are a professional athlete required to abide by the WADA regulations you can still apply for a TUE, (Therapeutic Use Exemption), when you have a a legitimate medical reason for needing to take BPC-157, such as a bone fracture or debilitating tissue injury
This can include B12, but it can also exclude it depending on the specific supplement, so it's essential to look at the Supplement Facts label of any given B-Complex to know which B Vitamins are included
That's why many liposomal glutathione products, including formulas like LipoMax, include Vitamin C in the same tablet
it's a precision measurement instrument
How Topical GHK-Cu May Work (Mechanisms) 1) Extracellular matrix (ECM) remodeling In vitro, ex vivo, and small clinical contexts, GHK-Cu has been reported to support collagen I/III , elastin , and glycosaminoglycan synthesis and to modulate MMP/TIMP activitypathways central to dermal structure and resilience (PubMed