Calcium pantothenate (CAS no. 137-08-6) is the calcium salt of pantothenic acid (vitamin B5). It is used in cosmetics due to its anti-static and hair conditioning properties. A 53-year-old female nurse's aide presented with intermittent facial eruptions (Figure S1). Patch tests were positive to calcium pantothenate, an ingredient of two of her products (a cleansing milk and a facial tonic). To our knowledge, no previous cases of sensitization from calcium pantothenate have been reported except for one case of systemic dermatitis from a nutritional supplement in a dexpanthenol-sensitized patient.
Keywords: (CAS no. 137-08-6); (CAS no. 667-83-4); (CAS no. 79-83-4); (CAS no. 81-13-0); Pantholin; allergic contact dermatitis; calcium pantothenate; calpanate; case report; cosmetics; panthenol; panthenyl ethyl ether; pantothenic acid; vitamin B5.
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