Discussions tagged with 'nano' doreen Formulating a sunscreen lotion with mineral UV filters. doreen replied 6 years, 10 months ago 3 Members · 9 Replies Formulating zink Best non-nano zinc oxide that doesn’t leave white residue @ 5-10%? zink replied 7 years, 9 months ago 7 Members · 17 Replies Formulating Viewing 1 - 2 of 2 discussions