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hydrogel contained Carbopol® 940 1.0 % (w/w), propylene glycol 5.0 % (w/w) , ethanol 95 % (v/v) 10.0 % (w/w), and purified water 84.0 % (w/w). The organogel contained almond oil 85.0 % (w/w) and Span® 60 15.0 % (w/w). Briefly, the preparation was prepared as follows: the weighted Carbopol® 940 was dispersed in the
The gel was prepared using Carbapol-940 (1%), propylene glycol 400, ethanol, methyl paraben, propyl paraben, EDTA, tri-ethanolamine and distilled water in a quantity sufficient to prepare 100 g of gel in case of blank gel. Water required for these formulations was divided in to two parts.