Photoacoustic Spectroscopy to Evaluate the Potentiality of Bee-Propolis as UV Protector
Journal de Physique IV, Vol. 125 (June 2005)
Abstract: In this work, the Photoacoustic Spectroscopy was employed to evaluate the potentiality of bee-propolis as UV protector. The experiments were performed to obtain the creams optical absorption spectra in the UV spectral region and also to evaluate in vivo the penetration rate of the obtained product in humans. The results showed the spectral response of the developed bee-propolis creams, and also revealed that two hours after the application about 40% of the cream signal was still detected on the skin surface.
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