Average values of the total amount or curcumin (CUR) from commercial turmeric permeated in a 12 h assay (AUC0-12), curcumin flux (J) through the skin, time to attain maximum concentration (tmax) and maximum concentration attained of permeated curcumin (Cmax), for the gel formulations integrating curcumin at 1.0 % (w/w), 1.5 % (w/w) and 2.0 % (w/w) and CG-DES at 0 % (w/w), 0.5 % (w/w), 1.0 % (w/w), 1.5 % (w/w), 2.0 % (w/w), and 2.5% (w/w). All values displayed represent the mean of three experiments and associated standard deviations.