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The blood samples were centrifuged at 4000 g for 10 min, and the serum samples were stored at - 20C until measurement of liver enzymes
27 Schulze-TanzilG.De SouzaP.Villegas CastrejonH.JohnT.MerkerH
PMID: 41796712 References are provided for research reference only
Outcome signal Cosmetic support Evidence cue Skin and hair research Decision rhythm Start / Compare / Explore Best-fit signals Choose GHK-Cu Topical Serum when these match your goal Decision timeline What to expect as you compare GHK-Cu Topical Serum Timelines vary by goal, dose, baseline health, and consistency
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