A study carried out at Sao Paulo University, Brasil, in 2013, investigated the influence of propolis on the growth of Candida Albicans fungus, which causes a variety of skin and soft tissue infections in healthy people. The experiment evaluated the growth of three strains of Candida Albicans at 30oC for 16 h under in vitro conditions. After treating cultures with propolis at varying concentrations from 0.125% to 1.0%, the growth of the fungus was significantly inhibited depending on the dose. The results showed that propolis at 1% level could inhibit the growth of Candida completely. The authors propose that propolis is a powerful support for controlling candidiasis.

Reference: De Castro, P.A., Bom, V.L.P., Brown, N.A., de Almeida, R.S.C., Ramalho, L.N.Z., Savoldi, M., Goldman, M.H.S., Berretta, A.A. and Goldman, G.H., 2013. Identification of the cell targets important for propolis-induced cell death in Candida albicans. Fungal Genetics and Biology, 60, pp.74-86.