The influence of ethanol fractions of infusa of Plantago major L. leaves in effectivity of octyl methoxycinnamate as active ingredient of sunscreen
In this research, two formulas were prepared. Formula I contained octyl methoxycinnamate per se and formula II contained a mixture (1:1) of octyl methoxycinnamate and ethanolic fraction of Plantago major, L. leaves. Both formulas were exposed to the sun light for 5 hours (09.00-14.00 WIB) in which samples were taken every hour. The effectiveness of octyl methoxycinnamate was calculated based on the percentage of erythema transmission and the percentage of pigmentation transmission, prior and after the irradiation by the sun light for 5 hours. The statistical data analysis
was performed based on the Student t test with a confidence level of 95%.
The addition of the ethanol fraction of Plantago major, L. leaves significantly reduced the percentage of the erythema transmission after solar irradiation (p<0.05).The ethanol fraction also significantly reduced the percentage of pigmentation transmission prior and after solar irradiation (p<0.05). Furthermore, as the ethanol fraction had the maximum absorption at 331.8 nm, that is in the UVA spectrum, its combination with octyl methoxycinnamate resulted in a sun screen formulation that protect from UVA as well as UVB
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