Table 4. Surface tension and viscosity of selected microemulsions (mean ± SD, n=3).

Formulation	Surface tension (dyne/cm)	Viscosity(cps)
ME-1	37.83±1.25	215.5±5.2
ME-2	38.16±1.04	228.4±6.3
ME-3	38.83±1.25	290.1±7.1
ME-4	37.83±1.25	226.2±7.8
ME-5	40±2.17	253.4±3.7
ME-6	39.66±0.76	271.3±5.8
ME-7	39.66±1.52	229.4±4.8
ME-8	38.16±1.04	343.5±8.3