Karzan Omar - Determinations of Sun Protection Factor (SPF) of some sunscreens marketed in Kurdistan Region by UV-Visible spectrometery and study their Rheological properties

Version 1

      Publication Details (including relevant citation   information):

     Karzan   Abdulkareem Omar, Rondick Sarkawt Abdulrahman. Determinations of   Sun Protection Factor (SPF) of some sunscreens marketed in   Kurdistan Region by UV-Visible spectrometery and study their   Rheological properties. International Journal of Pharmaceutical   Chemistry .Vol 5, No 2 (2015).

      Abstract:

        The sunscreen products contain active ingredients able to absorb,   reflect and scatter the UV rays. The in vitro sun production   factor (SPF) of some sunscreen emulations marketed in Kurdistan   Region can be estimated by ultraviolet-visible spectrophotometer.   Fifteen different commercially available samples of sunscreen   emulsions of various manufacturers were selected and assessed in   vitro SPF values, pH values and rheological profile analysis. The   SPF labeled values was in the range of 15 to 100. The values of   the 33% of the analyzed samples are in close agreement with   labeled SPF, 13% of SPF values above the labeled amount and 54%   SPF values under the labeled amount. All samples of sunscreen   emulsions exhibited pH values 6.2 to 7.9 and rheological profiles   indicated that the all sunscreens have pseudoplastic   properties.

      Address (URL): http://www.ssjournals.com/index.php/ijpc/article/view/1726/1578