> I'm not an expert at this stuff & hopefully those more knowledgable
> will step in and correct me if I'm wrong...I thought glycerin was water-
> based....so wouldn't you have to add a preservative if you used
> glycerin in your lip balms?
Glycerin is water-SOLUBLE, not water-BASED. Adding glycerin alone to a
mixture actually DRAWS water, making it less hospitable to microbial life.
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