Discussions tagged with 'natural-preservative' Springwaves The necessity of buffering Geogard Ultra Springwaves replied 11 months, 3 weeks ago 3 Members · 16 Replies Formulating Mags Using glycerin in liquid soap as a preservative PhilGeis replied 3 years, 1 month ago 5 Members · 5 Replies Cosmetic Industry Viewing 1 - 2 of 2 discussions