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The liver supplies most of the KBs in the BBB and are oxidized by the brain when circulating glucose becomes scarce

10.1016/j.biomaterials.2009.02.051 [DOI] [PubMed] [Google Scholar] 96.Guo S, Czarez-Mrquez F, Jiao H, Foppen E, Korpel NL, Grootemaat AE, et al

MRI reveals T2 hyperintensity in bilateral basal ganglia with edema and often bilateral striatal necrosis

Additionally, experts recommend avoiding harsh actives (e.g., retinoids, alpha-hydroxy acids, salicylic acid, etc.), vitamin C, or any active exfoliants while using GHK-Cu peptides

Aged skin has been linked to reduced barrier function, dryness, and a higher risk of skin illness [108]

doi: 10.1128/MCB.21.1.148-155.2001