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. 2008 May 13;9(2):628–634. doi: 10.1208/s12249-008-9080-6

Table II.

Classification of the SMEDDS Formulation in Accordance to Comparative Grades

Grade Dispersibility and appearance Time of self-microemulsification (min)
I Rapid forming microemulsion, which is clear or slightly bluish in appearance <1
II Rapid forming, slight less clear emulsion, which has a bluish white appearance <2
III Bright white emulsion (similar to mill in appearance) <2
IV Dull, grayish white emulsion with a slight oily appearance that is slow to emulsify >3
V Exhibit poor or minimal emulsification with large oils droplets present on the surface >3