copper peptide ghk-cu intradermal injection study Figure 2 from GHK – in Skin Remodeling and Anti-Aging ! GHK- Cu in Skin Remodeling GHK-CU Before and After Pictures
Description
The results support the phenomenon observed in this report, in which vitamin B12 was injected at the swollen nerve roots

(2021) The effectiveness of cobalamin (B12) treatment for autism spectrum disorder: a systematic review and meta-analysis

Interactions between drugs and vitamins at advanced age

Injection site reactions including redness, minor swelling, or tenderness at the injection location can occur but are generally minimal with proper technique and site rotation