fda approved ghk-cu injectable – Research Peptide GHK-CU 50mg - Contexx Research
Description
Preclinical safety data In mouse studies, 5-amino-1mq was well-tolerated even at doses several times higher than those producing metabolic effects

A short 5-Amino-1MQ half life means that a single daily dose might lead to significant peaks and troughs in plasma levels, which could impact the consistency of its biological effects

The LOPS documentation carries the claim

Injections bypass that step, so more B12 becomes available to tissues

The most recent study on total B12 body count was also the study that found the lowest body stores (Bessent, 1980)
