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Having a decreased tendency to provoke an allergic reaction: hypoallergenic cosmetics.
(Pathology) (of cosmetics, earrings, etc) not likely to cause an allergic reaction
hy•po•al•ler•gen•ic(ˌhaɪ poʊˌæl ərˈdʒɛn ɪk)
designed to minimize the likelihood of an allergic response, as by containing few or no potentially irritating substances: hypoallergenic cosmetics.