Discussions tagged with 'natural-preservative' Springwaves The necessity of buffering Geogard Ultra Springwaves replied 6 days, 18 hours ago 3 Members · 16 Replies Formulating Mags Using glycerin in liquid soap as a preservative PhilGeis replied 2 years, 2 months ago 5 Members · 5 Replies Cosmetic Industry Viewing 1 - 2 of 2 discussions