can ghk cu be absorbed through skin I was wrong about copper peptides. Turns out the ingredient AND the delivery matter. The 2015 Li et al. study measured GHK-Cu permeation real human skin. On intact skin: near-zero. After rc-member-months-4-6|price:member-discount|sub:5.0:percent|otp:5.0:percent Treatment:1 Month Peptide Therapy | Face
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