Cream usually contains only a solution of 20 of Azelaic acid mixed with
other inactive ingredient such as glycerin , cetearyl octonoate ,
cocoglycerids , propylene glycol , and purified water to produce skin
product (Niaze , p . 105 . Gel , on the other hand is manufactured by
adding benzoic acid , ETDA , 15 of Azelaic acid , among others (Niaze , p .
105 . An Azelaic acid in the...