aod9604 does not increase igf1 human study Mechanisms of Disease: metabolic effects of growth hormone and insulin-like growth factor 1 The chronic effect of AOD9604

10.1038/s41392-023-01577-3 112 ReidM.SpenceJ.NwokochaM.PalaciosJ.NwokochaC

Oral Supplements: A Quick Comparison For people with a confirmed deficiency, especially those with absorption problems, injections generally act faster than oral supplements: Injections: bypass the gut, reliably reach the bloodstream, and often produce noticeable changes in energy and mental clarity within days for those who are deficient

This helps keep their health safe

Stomach acid drops with age, intrinsic factor production drops with it, and dietary B12 absorption follows

This difference in mechanism is what makes the combination potentially valuable