Almost all Biologique Recherche cosmetics, some SkinCeuticals products and the SK-II brand are famous for unpleasant odors. However, this does not put off many fans of professional cosmetics.

They believe that products with unusual scents are more effective and of higher quality. Psychology plays a big role in this perception: the brain associates scents with previous experiences, and habituation to similar scents, such as in medicines or detergents, makes unpleasant odors in cosmetics less irritating. In addition, cultural characteristics and understandable product composition influence consumer choice. Many people prefer honest and clear notes that guarantee the presence of key components in the composition.

This factor makes cosmetics with unusual scents more attractive and trusted.