ghk-cu mechanism of action G H K. K E R A T I N. delivers copper that coordinates with available cysteine thiols on damaged keratin, driving surface-state changes that smooth and stabilize the fiber; keratin protein AHK-CU + GHK-CU Suero skin_maxxing Size:M 13/W 15
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Ships within 48 hours · Estimated delivery Oct 27 - Nov 1