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Description
Schneider et al., 2002)

They found that standard aqueous solutions of AHK-Cu were ineffective because the hydrophilic peptide could not penetrate the sebum-rich environment of the hair follicle and was easily washed away during rinsing

Periodontology 2000 , 19 , 40-58

Nasal spray vs

The peptide gene expression effects extend far beyond hair follicles
