Changes
/* Preferred solvent with respect to penetration enhancer */
==Preferred solvent with respect to penetration enhancer==
[[Image:activescsolvent used.jpg|200px|center|frame|thumb|<center>'''Penetration enhancer (x-axis) vs solvent (z-axis)'''</center>]]
*Inorganic compounds are used with a wide range of solvents like higher & lower alcohols, acids & derivatives, etc.
*Polyols are used in conjunction with solvents such as glycol, glycerol, lower alcohols and acids
==Delivery strategies for whitening actives==
