Table II.

Chemical and Functional Characteristics of Non-Ionic Surfactants

Excipient	Chemical name	HLB	Function
Peceol	Glyceryl monooleate type 40NF	3	Oily vehicle; solubilizer; bioavailability enhancer
Maisine 35-1	Glyceryl monolinoleate NF	4	Oily vehicle; bioavailability enhancer
Transcutol-P	Diethylene glycol monoethylether	4.2	Solubilizer; co-solvent; penetration enhancer
Lauroglycol-90	Propylene glycol monolaurate	5	Water insoluble surfactant; bioavailability enhancer
Labrasol	Caprylocaproyl polyoxyl-8 glycerides NF	14	Water dispersible surfactant; bioavailabilty enhancer
Tween-20	Polyoxyethylene sorbiton monolaurate	16.7	Oily vehicle; non-ionic surfactant; bioavailability enhancer

HLB hydrophilic and lipophilic balance refers to the hydrophilic and lipophilic parts of surfactants