Table 6.

PDI of niosomes after storage at 4 °C and 25 °C (Mean ± SD, n = 3)

Formulation	Storage	PDI
		0 day		21 day	28 day
T40	4 °C	0.220 ± 0.008	0.221 ± 0.006	0.211 ± 0.007	0.238 ± 0.005
	25 °C		0.231 ± 0.004	0.232 ± 0.008	0.301 ± 0.009*
S40	4 °C	0.265 ± 0.006	0.276 ± 0.004	0.281 ± 0.005	0.291 ± 0.007
	25 °C		0.287 ± 0.007	0.291 ± 0.008	0.498 ± 0.009**
B40	4 C	0.165 ± 0.006	0.198 ± 0.005	0.276 ± 0.004*	0.498 ± 0.005**
	25 °C		0.201 ± 0.006	0.431 ± 0.007**	0.598 ± 0.009***

^* P < 0.05,

^** P < 0.01 and

^*** P < 0.001 compared to 0 day.