There is growing evidence of a direct link between gastrointestinal function and the brain (Caracciolo et al., 2014)
Published pre-clinical citations on the product page include research by Sikiric et al
Re-epithelialization and Keratinocyte Migration GHK-Cu accelerates wound closure through stimulation of keratinocyte proliferation, migration, and differentiation processes essential for re-epithelialization
The ATF4-mediated upregulation of amino acid transporters and one-carbon metabolism, including SLC1A1, SLC7A8 , and SHMT2 , presumably increases the supply of glutamate, cysteine, and glycine, which might act in concert for the biosynthesis of GSH
Option 2: MOTS-C + Retatrutide MOTS-C is a small peptide encoded by mitochondrial DNA