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Administration technique affects absorption
Brains from male mice but not female mice, treated with intranasal GHK-Cu, only showed a decreased trend for the presence of microglia, suggesting microglia are not a robust target for GHK-Cu at least under the experimental conditions of this study
Important note: Vitamin B12 injection therapy usually begins with a "loading phase." A common regimen involves daily injections of 1000 micrograms (mcg) for one week, followed by weekly injections for one month
Seven Phase 3 trials are expected to complete in 2026, with regulatory submission likely following shortly after
