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Topical GHK-Cu serums are widely available but they deliver a much lower concentration to the dermis than subcutaneous injection because the peptide does not readily cross intact skin

The concentrations were measured using Tunable Resistive Pulse Sensing (TRPS) from Izon Sciences

Cosmederma follows strict quality control measures and manufactures its products in GMP-certified facilities

Always follow the instructions on your prescription label

Whether intentional or not, this conflation creates a false sense of regulatory legitimacy

PMID: 16539679 Khvatova EM, Samartzev VN, Zagoskin PP, Prudchenko IA, Mikhaleva II (2003) Delta sleep inducing peptide (DSIP): effect on respiration activity in rat brain mitochondria and stress protective potency under experimental hypoxia