There are seven vehicle ingredients that are commonly used in topical corticosteroid vehicles that are well-known allergens: propylene glycol, sorbitan sesquioleate, formaldehyde-releasing preservatives, parabens, methylchloroisothiazolinone/methylisothiazolinone, lanolin, and fragrance. Of 166 topical corticosteroids, 128 (including all creams) had at least one of these vehicle ingredients. More generic products were free of allergens than were branded products. Solutions and ointments were the least allergenic vehicles. The most commonly present potential allergens were propylene glycol and sorbitan sesquioleate.
From sheep. Used in clothing. Ram lambs and old “wool” sheep are slaughtered for their meat. Sheep are transported without food or water, in extreme heat and cold. Legs are broken, eyes injured, etc. Sheep are bred to be unnaturally woolly and unnaturally wrinkly, which causes them to get insect infestations around the tail areas. The farmer’s solution to this is the painful cutting away of the flesh around the tail (called “mulesing”). “Inferior” sheep are killed. When sheep are sheared, they are pinned down violently and sheared roughly. Their skin is cut up. Every year, hundreds of thousands of shorn sheep die from exposure to cold. Natural predators of sheep (wolves, coyotes, eagles, etc.) are poisoned, trapped, and shot. In the ., overgrazing of cattle and sheep is turning more than 150 million acres of land to desert. “Natural” wool production uses enormous amounts of resources and energy (for breeding, rearing, feeding, shearing, transport, slaughter, etc.). Derivatives: Lanolin, Wool Wax, Wool Fat. Alternatives: cotton, cotton flannel, synthetic fibers, ramie, etc.
Since lanolin is a natural product, its constituents vary depending on its source. Therefore an individual may be allergic to some lanolin-containing products but not to others. Self-testing a product for allergy to lanolin-containing products is possible but should be done only after first talking with your doctor. This should be done only with products that are designed to stay on the skin such as cosmetics and lotions. Apply a small amount (50 cent sized area) of the product to a small tender area of skin such as the bend of your arm or neck daily for 5 to 7 days. Examine the area each day and if no reaction occurs, it is unlikely you are allergic to it, although it may still act as an irritant. Products such as soaps, polishers and waxes should not be tested in this way.