The influence of micellar stability on technological process has been an active area of research. Alcohols and oils are the most commonly used additives in micellar solutions to form various solubilized systems or micro emulsions for a wide range of industrial and technological applications. We report here the frequency dependence of the permittivities and the relaxation time of the micellar solutions of Cetyl Trimethyl Ammonium Bromide (CTAB) and Dodecyl Pyridinium Chloride (DPC) in water in the presence and absence of hexan-1-ol, octan-1-ol, decan-1-ol and ethane1,2diol. Time domain dielectric spectra were obtained in the reflection mode in the frequency range of 10 MHz to 20 GHz at 303 K using HP54750A Sampling oscilloscope and HP54754A TDR plug-in-module. The relaxation time of bound water was calculated using Cole–Cole method. The addition of alcohols results in a linear increase in the relaxation time in all the systems. As the concentration of alcohols increases τ/η_r attains a near constant value for aqueous DPC micellar solutions showing that solubilization becomes more difficult at these concentrations. The molar activation energy for viscous flow ΔF_η is nearly constant in all systems showing no noticeable change in the hydrodynamical shape of the micelles, on addition of low concentration of alcohols.