how is ghk cu taken GHK-Cu actually worth it?” is genuinely one of the most common questions in my comments, so let me finally answer it properly. The short version: copper peptides have real research behind GHK-Cu Peptides Before and After:

The information contained herein is presented in summary form only and intended to provide broad consumer understanding and knowledge

International Journal of Immunopathology and Pharmacology , 19 (2), 339356

Specialized endothelial cells forming the BBB lack intracellular fenestration and therefore the molecular size threshold for free diffusion across the BBB is considered to be 400600 Da [71], 72]

Vegans and vegetarians: Since B12 is primarily found in animal products, supplementation is often necessary

If you're exploring MIC B12 injections or other metabolic therapies, consider requesting biomarker evaluation and discussing genetic context with your provider

The biological half-life of vitamin B12 in the liver averages about 12 months, which contrasts sharply with its plasma half-life