A comprehensive review by Pickart, Vasquez-Soltero, and Margolina (2015), documented GHK-Cus ability to reset gene expression patterns in aged or damaged tissue toward a more regenerative state, affecting over 4,000 human genes
But it is also one of the reasons TRT Nation takes a different approach
However, few people are aware of the role of vitamin B12 in supporting brain health and normal functioning
Because vitamin B 12 in supplements is not bound to protein, and because intrinsic factor (IF) is still available, the absorption of supplemental vitamin B 12 is not reduced as it is in pernicious anemia
" Sublingual guarantees better absorption." It's a reasonable theory, though how well it works differs widely from one person to the next