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  • Mineral Sunblock Issue

    Posted by chickenskin on February 27, 2020 at 10:37 pm

    Hello Group,

    I have made an anhydrous sunblock with 30% combo of ZnO and TiO (non-nano USP ~100%)  24%ZnO 6%TiO.

    However when testing is conducted I am getting ~SPF15.  I am pretty confused why I would get so low with such high amount of active.  

    Thank you

    Any comments?

    chickenskin replied 3 years ago 1 Member · 0 Replies
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