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Table 2

SPF values using different concentrations of marketed Lotus gel formulation and Mgy loaded carbopol gel. (n = 3, mean ± sd)

Sr. No. EE effect Wavelength Marketed formulations
MGY loaded test formulations
Lotus (150 μL)
U1 (150 μL)
U2 (100 μL)
U3 (50 μL)
EE Abs. Abs. SPF Abs. SPF Abs. SPF Abs. SPF
1 0.021 290 0.799 0.821 0.579 0.323
2 0.127 295 0.754 0.817 0.549 0.318
3 0.266 300 0.751 0.810 0.518 0.281
4 0.327 305 0.632 6.806 0.739 7.709 0.411 4.502 0.272 2.802
5 0.181 310 0.612 0.720 0.371 0.267
6 0.057 315 0.577 0.711 0.363 0.238
7 0.032 320 0.562 0.687 0.261 0.235

SPF: sun protection factor, EE: erythemogenic effect AM: marketed lotus (150 μ), Ulva (U1-U3) freshly prepared gel from concentration (50-150 μl/ml).

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