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The apparent permeability coefficients (P app ) were calculated as described previously [40] with the following equation: where [C] A is the concentration difference of in the acceptor compartment at 24 h, [C] D is the concentration in the donor compartment at 0 h, V A is the volume of the acceptor compartment (0.9 ml), and A is the surface area available for permeability (0.33 cm 2 )

doi: 10.1056/NEJMoa1003114

A.JeurissenM.van GinkM.VerjansR.et al (2014)

GHK-Cu (Copper Peptide): Known for its role in skin repair and collagen synthesis

[DOI] [PubMed] [Google Scholar] 13.Leisegang K, Finelli R

D.ZhangY.YinG.ZhangB