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The aim behind doing this work is to determine and comparison of SPF (sun protecting factor) of citrus fruit juices which is previously used in cosmetics as flavor agent or a cleansing agent here determination of its SPF gives a safe and Excellency parameter to its use. SPF is a laboratory measure of effectiveness of sunscreen factor. Higher the SPF value more protection against ultra violet radiations which causes sun burn disease. SPF determination is the in vitro testing of sunscreen activity with the help of UV spectrophotometer (290nm-320nm). Here different concentrations of citrus fruit juices like Lemon (Citrus medica), Orange (Citrus sinensis), and Mosambi/Sweet lime (Citrus limetta) were taken under consideration of photo protective test to prove its efficiency in the sunscreen activity and also for the comparison of SPF factor.
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