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RESEARCH ARTICLE
Year : 2009  |  Volume : 5  |  Issue : 19  |  Page : 238-248

Efficacy Study of Sunscreens Containing Various Herbs for Pro­tecting Skin from UVA and UVB Sunrays


Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur [C.G], 492010, India

Correspondence Address:
Swarnlata Saraf
Institute of Pharmacy, Pt. Ravishankar Shukla University, Raipur [C.G], 492010
India
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Source of Support: None, Conflict of Interest: None


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Currently, no standard protocols and objective measures are existing in present system for quality analysis of herbal sunscreens. Present work is an attempt to compile rapid, non-invasive technologies to investigate the sunscreens containing various herbs like aloe vera, jojoba, cucumber, wheat germ, olive etc for their efficacy in protecting skin from UVA and UVB sunrays. Commercial herbal sunscreens containing herbs aloe vera, basil, green tea, etc and bearing SPF range 10-40 coded as HS1- HS14, were analyzed by subjective, photostability and other parameters evaluation. All sunscreens shown pH [6.09±0.01 to 8.30±0.03], Saponification value [6.01±0.2 to 207.57±0.3], Acid value [1.56±0.6 to 17.27±0.5], Ash value [0.01±1 to 0.08±2 gm], Spreadibility [96±0.9 to 98±0.9 %], Layer thickness [28.99±1.55 to 32.25±1.00 %]. Viscosity profile showed the pseudoplastic behaviour of all formulations. Phase separation was observed in HS1 to HS4, HS7& HS9 to HS12 during stability study. None of them were found to be irritant [erythema score = 0] and have microbial count load in the range of to 31±1 to 34±2 CFU/gm. 98±5 % of all sunscreens has shown SPF as per labelled claim by In-vitro and In-vivo method. HS 6, 9, 11 were found to be unstable in UVA range. HS8, most preferred by volunteers after Psychometric evaluation. Results of the study scientifically verified that herbs are having enough potential to protect skin to protect skin from harmful sunrays and it is worthwhile for consumers to use herbal sunscreens. Overall study is useful to substantiate product claims.


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