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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 28, Number 9
BKCSDE 28(9)
September 20, 2007 

Transdermal Penetration of Synthetic Peptides and Their Penetration Enhancement Caused by Some Terpene Compounds
Seung Wook Ham, Myung Joo Kang, Young Mi Park, Il Young Oh, Bo Gyun Kim, Tae Jong Im, Sung Hee Kim, Young Wook Choi, Jaehwi Lee*
Transdermal, Synthetic peptide, Permeation enhancer, Terpene
The work presented in this paper represents a study of the rate and extent of transdermal penetration of three synthetic hexapeptides consisting only of glycine (Gly) and phenylalanine (Phe) as the constituent amino acids and they include Phe-Gly-Gly-Gly-Gly-Gly (Pep-1), Phe-Phe-Gly-Gly-Gly-Gly (Pep-2), and Phe-Phe-Phe- Gly-Gly-Gly (Pep-3). The present study demonstrated the extent to which the peptides having a high metabolic stability were transdermally transported from the various vehicles. The results of this study appear to indicate that minor differences in the lipophilicity of the synthetic hexapeptides have a slight influence on the rate and extent of transport. In the presence of terpene permeation enhancers, together with ethanol (i.e., menthone/ EtOH, carveol/EtOH or cineole/EtOH), the peptides were more rapidly penetrated through the skin and among the terpenes tested, cineole was the most effective for all three peptides. The maximum enhancement ratio of approximately 2 was achieved by cineole in 50% ethanol solution.
1535 - 1538
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