Balsam of Peru was the main recommended marker for perfume allergy before 1977, which is still advised. The presence of Balsam of Peru in a cosmetic will be denoted by the INCI term Myroxylon pereirae .   In some instances, Balsam of Peru is listed on the ingredient label of a product by one of its various names , but it may not be required to be listed by its name by mandatory labeling conventions (in fragrances, for example, it may simply be covered by an ingredient listing of "fragrance").    
The telltale feature of a seborrheic keratosis is its waxy, stuck-on, greasy look. Seborrheic keratosis can almost be peeled or scraped off the skin while moles are not easily scraped. Seborrheic keratoses look like they have either been pasted on the skin or may look like a dab of melted brown candle wax that dropped on the skin. Seborrheic keratosis may occur in the same areas as moles. Seborrheic keratoses are also more common in areas of sun exposure, but may rarely occur in doubly sunprotected areas like the underwear area. When they first appear, the growths usually begin one at a time as small rough bumps. Eventually, they may thicken and develop a rough, warty surface.