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It reinforced the importance of quality assurance in supporting the safe supply of peptides to patients

Early evidence of SRXN1 as an AP-1 target gene was suggested using a candidate approach and bioinformatic analysis that revealed three predicted AP-1 binding sites within the SRXN1 promoter region 38,39

A 2025 paper published in BioImpacts confirmed topical GHK is increasingly being studied as a clinical anti-aging compound with hair restoration applications and that injectable forms are now entering clinical interest following the FDA's April 2026 decision to remove GHK-Cu from the Category 2 restricted list

strain specificity is often missing