Most people need several weeks to a few months of consistent use before judging GHK-Cu
This is consistent with the previous findings that hypoxia-response genes were upregulated in the islets of diabetic, but not prediabetic, db/db mice in an inverse relationship with unfolded protein response gene expression 28,33
Interestingly, retatrutide achieves something similar by activating GLP-1, GIP, and glucagon receptors through a single molecule
Tretinoin is that active retinoic acid already, so it binds skin receptors directly and acts faster
doi: 10.1016/j.bbagen.2012.11.020 19 YangWSSriRamaratnamRWelschMEShimadaKSkoutaRViswanathanVSet al
AOD vs GLP-1 GLP-1 agonists (semaglutide, tirzepatide) are our primary medical weight-loss lane with the strongest evidence