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Injectable GHK-Cu should only be dosed by a licensed medical professional
Older adults are more likely to have a vitamin B12 deficiency because they're prone to not having enough hydrochloric acid in their stomachs
This guide covers exact dosage protocols, reconstitution math, injection timing, a week-by-week results timeline, side effects, stacking options, and the only human clinical trial data available
The powder storage duration guide covers specific timelines
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