| dc.description.abstract | The present research was undertaken to determine the sunscreen activity of herbal oils. The in vitro Sun Protection Factor (SPF) was used to evaluate by ultraviolet-visible (UV-Vis) spectrophotometry according to Mansur equation in the UV range 290-320 nm. The SPF values of wheat germ oil and carrot seed oil were determined 6.7597 and 7.1847, respectively. As incorporation into cream base, the formulation had fixed 15% of wheat germ oil and 0.3% carrot seed oil showed the highest SPF value of 7.368. As incorporation into cream base containing oxybenzone, the formulation had fixed 15% of wheat germ oil and 0.1% carrot seed oil showed the highest SPF value of 11.7837. It was observed that the herbal oils show the good synergism with chemical UV filter – oxybenzone and the higher amount of carrot seed oil is not proportional to the higher SPF. Next, physical parameters of the formulation having the best SPF value was evaluated that complies with official acceptance criteria. Finally, the experiment with UV color changing bead indicates the herbal sunscreen is definitely able to against to ultraviolet (UV) radiation.
Keywords: Sun Protection Factor (SPF), wheat germ oil, carrot seed oil, UV-Vis spectrophotometry, herbal sunscreen, sunscreen activity. | en_US |
