Lanolin helps to restore the skins natural moisture barrier. It help to accelerate trace and harden your soap.
Lanolin, also called Adeps Lanae, wool wax, wool fat, or wool grease, a greasy yellow substance from wool-bearing animals, acts as a skin ointment, water-proofing wax, and raw material. Lanolin is "wool fat" or grease, chemically akin to wax, which is secreted by the sebaceous glands of wool-bearing animals, such as sheep. Lanolin's ability to act as a waterproofing wax aids sheep in shedding water from their coats. Certain breeds of sheep produce large amounts of lanolin, and the extraction can be performed by squeezing the wool between rollers. Most or all the lanolin is removed from wool when it is processed into textiles, eg yarn or felt.
Warning: Some people may be allergic to this product.