Abstract: A therapeutically active composition of thioretinaco ozonide is provided for providing anticarcinogenic, antineoplastic, antiviral, antiatherogenic, and antiaging benefits having the formula: (NHTR)2CblO3O2ATP wherein: NHTR is N-homocysteine thiolactonyl retinamide; Cbl is cobalamin; O3 is ozone; O2 is oxygen; and ATP is adenosine triphosphate. The N-homocysteine thiolactonyl retinamido cobalamin ozonide oxygen adenosine triphosphate complex is further enhanced by utilizing an ozone-resistant liposomal carrier for protecting the composition against oxidative degradation. The ozone-resistant liposomal carrier is advantageously employed to protect a variety of pharmaceutical compositions from oxidative degradation. The ozone-resistant liposomal carrier can also be sterically stabilized to increase the concentration and efficiency of the delivery of pharmaceutical compositions.