Parfum (Fragrance)


Fragrance gives the product a nice smell and the feeling that comes with such is exhilarating.. we all want to smell good. unfortunately, we pay a very high price for that 'to die for' scent, be it in hair, make up, shampoo or bubble bath. 
 fragrance and preservatives are the chief culprits in damaging skin!
fragrance, if allergic, may irritate collagen in skin, hampering its ability to fight diseases and heal quickly. this may not show abruptly or on the surface but collagen is responsible for keeping skin supple and firm and the lack thereof results in premature ageing and wrinkling. 
examples of fragrances include diazolidinyl urea, fragrance, lanolin alcohol, formaldehyde, etc.


those with acne should avoid fragrance as an allergic reaction will definitely show on the face.  
http://ec.europa.eu/health/scientific_committees/consumer_safety/docs/sccs_o_073.pdf offers a more than detailed analysis on the effects of allergic fragrances on skin.