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GHK-Cu, or Glycyl-L-Histidyl-L-Lysine-Copper(II), is a small, naturally occurring copper complex that has garnered significant attention in the fields of dermatology and aesthetic medicine
Use them at different times of day, morning and evening being the typical separation
The UK government says adults need 1.5 micrograms (mcg) a day, the US National Institutes of Health advises 2.4mcg, and the European Food Safety Authority says 4mcg a day is adequate
A 2017 study pushed the delivery further
Maintaining 90g or more of daily protein while running this stack gives GHK-Cu the building blocks it needs to translate its signaling effects into actual tissue improvements
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