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Does propylene glycol prevent parabens from falling out of solution?
Parabens are just too water insoluble
Methylparaben 0.16% @ 15 C
Propylparaben 0.023% @ 15 C
http://www.nardev.com/UploadSection/ProdCat-183-1444197164.pdf
These figures are well below the EU regulations maximum allowed (0.4% and 0.15%)Does propylene glycol “cling” to parabens molecules and prevent them from precipitating in water?
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