The real question is what your specific injury picture looks like, and whether one peptide, the other, or the Wolverine Stack combining both, matches that picture
S.GusmanG
Quick Take (TLDR) Mostly animal and in vitro data plus multiple very small uncontrolled human reports (knee pain case series n=16, interstitial cystitis pilot n=12, 2subject IV infusion) and no randomized controlled trials or published human pharmacokinetic profiles
B12 shots may help restore healthy red blood cells, alleviate symptoms like fatigue and weakness, and offer faster benefits compared to oral vitamins
GHK-Cu acts as a signalling peptide, encouraging the body to produce more of its own collagen and elastin to support firmer, smoother and more youthful-looking skin
This is where Vitamin B12 comes in