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Acetylation caps that site, making the peptide invisible (or much less visible) to that enzyme class

10.1016/S1470-2045(08)70277-8 221 SinghB.KaurP.CedenoL.BrahimiT.PatelP.VirkH.et al (2021)

How does Dihexa improve memory

Physiol Behav (2019) 63:118

During milk kefir fermentation, yeast will metabolise lactose into fermentation metabolites, mainly lactic acid, ethanol, carbon dioxide and acetic acid (Ganatsios et al., 2021
Combine with B-complex vitamins and CoQ10 for mitochondrial support