The effects of excipients for topical preparations on the human skin permeability of terpinen-4-ol contained in Tea tree oil: Infrared spectroscopic investigations

作者：Casiraghi Antonella^*; Minghetti Paola; Cilurzo Francesco; Selmin Francesca; Gambaro Veniero; Montanari Luisa

来源：Pharmaceutical Development and Technology, 2010, 15(5): 545-552.

DOI：10.3109/10837450903338387

• Terpinen-4-ol
• isopropyl myristate
• oleic acid
• polyethylene glycol 400
• Transcutol (R)
• human skin permeability
• ATR-FTIR spectroscopy

This work aimed to evaluate the effect induced by excipients conventionally used for topical dosage forms, namely isopropyl myristate (IPM) or oleic acid (OA) or polyethylene glycol 400 (PEG400) or Transcutol (R) (TR), on the human skin permeability of terpinen-4-ol (T4OL) contained in the pure Tea tree oil. The effect of such excipients was determined by evaluating the absorption of T4OL using human epidermis and the perturbation of the organization of stratum corneum by ATR-FTIR. Among the tested excipients OA enhanced the absorption of T4OL by perturbing the stratum corneum lipid barrier. Other excipients caused a weak enhancement effect and their use should be carefully monitored.

• 出版日期2010-10