Preservatives: Liquipar Optima

Liquipar Optima is a liquid, broad spectrum preservative that look at a lot like Liqupar PE at first glance, but when we take a look at the INCI, we can see there’s an difference in the percentages and the inclusion of methylparaben! The INCI is phenoxyethanol (66% to 74%), methylparaben (14% to 16%), isopropylparaben (5% to…

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