Discussions tagged with 'suncsreen' Anonymous Source for Polyhydroxystearic acid Bobzchemist replied 8 years, 4 months ago 4 Members · 11 Replies General Zink Best full spectrum UV protection mineral blends for use in spray on sun block formulas? Zink replied 9 years, 3 months ago 2 Members · 2 Replies Formulating Viewing 1 - 2 of 2 discussions