At same concentration of steroid which of the following is most potent? (AI 2010)
a. Ointment bases tend to give better activity to the corticosteroids than do cream or lotion vehicles'.
b. Ability of the vehicle to retard evaporation from the surface of skin varies as
c. Tinctures (least) < wet dressings < Lotions < Gels < Aerosols < Powders < Pastes <Creams < Foams < Ointments (MaxI- mum).