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Verdict for antioxidant/senescence research: GHK-Cu is the stronger candidate for antioxidant and cellular senescence research, given its documented broad antioxidant transcriptome remodelling and direct SASP modulation
Effectiveness of delivery routesinjectable versus oral/nasal absorption, stability of formulation
Long-term testing: Conduct long-term tests under recommended storage conditions to observe changes in the physical and chemical properties of the cream and determine its validity period
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