This guide is written for clinicians who want an accurate, non-hyped understanding of where the DSIP peptide actually stands
Applying it before shampooing, or rinsing it off after application, dramatically reduces its efficacy
And delivery is ideally done 24 hours after the second dose
Notably, a related peptide variant, AHK-Cu (alanine-histidine-lysine copper), has demonstrated potent hair-regenerative activity in human hair follicle models at extremely low concentrations (10 to 10 M), indicating high biological potency
The primary molecular actions relevant to skin are: modulation of TGF- signaling (upregulating TGF-1 for collagen I/III synthesis while suppressing TGF-2 to prevent scarring), decorin upregulation for orderly collagen fibril assembly, MMP suppression paired with TIMP upregulation to preserve ECM integrity, and copper-dependent lysyl oxidase activation for collagen crosslinking