The lanolin paradox.
Maneno muhimu
Kikemikali
Several puzzling aspects of the use of lanolin are discussed as "lanolin paradoxes', in analogy with the 'paraben paradoxes'. Lanolin in topical therapeutic agents sensitizes a high proportion of patients, whereas the same lanolin is 'safe' in cosmetics so widely used by millions of individuals. Patients with an allergic contact dermatitis to lanolin in a medication applied to a stasis ulcer can nevertheless use lanolin-containing cosmetics and not experience a reaction. Lanolin-sensitive individuals often show false-negative patch test reactions to unaltered lanolin. Patch testing with 30% wool wax alcohols used in the standard patch test tray cannot be considered a reliable method for detecting and confirming lanolin allergies. There are too many false-positive and false-negative results using the standard patch test tray.