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The GH/IGF-1 axis in ageing and longevity
Studying gut health or using oral delivery
Whilst collagen peptides didnt increase total sleep duration, they did reduce sleep fragmentation, which is crucial for feeling genuinely rested
Actual stability and pharmacokinetics depend on formulation, purity, diluent, and storage conditions
If you are already using retinoids, AHAs, or other actives that increase cell turnover, adding GHK-Cu on top without adjusting your routine is asking for trouble
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