The essential oil and the aqueous, hexane and methanolic fractions from Hyptis ovalifolia
leaves were evaluated for their antifungal activity in vitro against 60 strains of dermatophytes: 10 strains of Microsporum canis
, 10 of M. gypseum
, 20 of Trichophyton rubrum
and 20 of T. mentagrophytes
. The extracts inhibited growth of the dermatophytes tested at different concentrations. The most biologically active was the essential oil from the leaves which inhibited 57 isolates (95%) at a concentration of ≤ 500 μg/ml.