Lanolin works for dry skin and psoriasis by forming a film on the skin that limits water loss across the skin surface. Lanolin is the only animal based fat that is regularly used in emollients, and is extracted from sheep’s wool. A new form of high purity medical grade lanolin called Medilan has been developed due to reported contact irritation from normal lanolin, especially for people living with eczema.
HelloSkin’s experts were unable to find any scientific data or clinical trials on the use of lanolin in people with psoriasis. However, lanolin has shown beneficial effects in other dry skin related diseases that have common symptoms with psoriasis.
A mixture of olive oil (70%) and lanolin (30%) emollient was found to reduce dermatitis in preterm infants after a 4 week treatment, and was shown to be better than a water-in-oil emollient cream1. In another study, pure lanolin applied twice daily for four weeks was shown effective in treating moderate to severe foot dryness2.
The concentration of an ingredient is important for its efficacy, and therefore products containing the same ingredient may not necessarily have the same effect as in the studies mentioned above. Updated: July. 2017
Updated: July 2017