In vivo investigations on the penetration of various oils and their influence on the skin barrier
Article first published online: 14 NOV 2011
© 2011 John Wiley & Sons A/S
Skin Research and Technology
Volume 18, Issue 3, pages 364–369, August 2012
How to Cite
Patzelt, A., Lademann, J., Richter, H., Darvin, M. E., Schanzer, S., Thiede, G., Sterry, W., Vergou, T. and Hauser, M. (2012), In vivo investigations on the penetration of various oils and their influence on the skin barrier. Skin Research and Technology, 18: 364–369. doi: 10.1111/j.1600-0846.2011.00578.x
- Issue published online: 4 JUL 2012
- Article first published online: 14 NOV 2011
- Manuscript Accepted: 9 OCT 2011
- Johnson & Johnson GmbH
- vegetable oils;
- paraffin oil;
- laser scanning microscopy;
The skin represents a potent barrier to the environment, which can be enhanced by the topical application of skin care products, such as oil and oil-based formulations by moisturizing the skin.
The aim of this study was the investigation of the penetration behaviour of four vegetable oils and of paraffin oil into the stratum corneum by laser scanning microscopy. In addition, the occlusion capacity of these substances was assessed by transepidermal water loss (TEWL) measurements. Petrolatum served as a positive control for skin occlusion. The study was conducted in vivo and included six healthy volunteers.
Paraffin oil, as well as the vegetable oils, penetrated only into the first upper layers of the stratum corneum. TEWL measurements indicated that the application of the vegetable oils (except jojoba oil) as well as paraffin oil, led to a similar occlusion of the skin surface. The most effective occlusion was found for petrolatum.
For the investigated oils, a deeper penetration than into the first upper layers of the stratum corneum could be excluded. The decreased TEWL values indicate that the application of the oils leads to a semi-occlusion of the skin surface as it is intended by the use of oils to retain moisture in skin.