ClinicalTrials.gov (2025) 10
You are over the age of 50 (when stomach acid naturally declines)
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The consistent finding across this body of work: no evidence of carcinogenic potential
Retrieved March 15, 2025, from National Health Service
As Alejandro Saldarriaga, head of applied research at DECIEM, explains, they support several aspects of healthy-looking skin rather than focusing on a single visible concern. And according to Dr Charlie Cox, longevity doctor at longevity hospital Reborne , the topical skin evidence is the most solid data when it comes to the effectiveness of GHK-Cu, as studies show an improvement in firmness, texture, tone and fine lines. Take the stats on the NIOD Copper Amino Isolate Serum 31:1, for example