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The biohacking community tends to favor this approach on the theory that higher systemic levels will produce better local effects

Evidence includes: Stimulation of endothelial and keratinocyte migration Enhanced blood vessel density in wound healing models Promotion of stem cell differentiation toward repair cell lineages Low molecular weight enabling tissue penetration over long distances Unlike growth factors that bind to extracellular matrix, TB-500s mobility allows systemic distribution to multiple injury sites

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Retatrutide, an investigational once-weekly triple agonist from Eli Lilly, targets three metabolic pathways (GLP-1, GIP, and glucagon)