Near infrared reflectance spectroscopy in the study of atopy. Part 3. Interactions between the skin and fomblins.

The near infrared reflectance spectra of the skin of atopic and normal subjects were compared after topical application of perfluorinated polyethers (fomblins) of different molecular weight and viscosity. It was possible to distinguish the two classes of subjects and the different fomblins applied, by principal components analysis.