and published in the Journal of Pharmacology and Experimental Therapeutics (2013)
A deficiency in B12 can lead to fatigue, brain fog, low mood, and decreased energy, making it harder to thrive in daily life
Plasma levels decline significantly: approximately 200 ng/ml at age 20, dropping to roughly 80 ng/ml by age 60
They're assessing whether treatment is obviously contraindicated, not whether it's medically optimal
The Clinical Bottom Line The answer to what is GHK-Cu is also the answer to why it matters: it is the bodys own repair signal, and most people over 30 are running it at a significant deficit
"That," Shea adds, "is when it becomes dangerous." Scrolling online, it's clear not every looksmaxxer buys into this ideology