ghk-cu injections vs topical 7% ACCELERANT GHK-Cu Peptides Before and After:

Immunity 37 , 563573 (2012)

Medication Interactions Certain medications reduce the absorption of methylcobalamin, cyanocobalamin, and other B12 supplements, including: Proton pump inhibitors (omeprazole, esomeprazole, and lansoprazole) H2-receptor antagonists (cimetidine, famotidine, and ranitidine) Metformin Colchicine Cholestyramine Certain antibiotics (neomycin and chloramphenicol) If you use these or other medications, talk with a healthcare provider about ways to maintain healthy levels of B12.

For the biohacker or health enthusiast, Cerebrolysin acts as an ultimate "reset" button for the brain

None of the clinical trials studied concurrent use because no responsible research protocol would design that overlap intentionally

First, sourcing is everything