Humectants: Dipropylene glycol & butylene glycol

Dipropylene glycol shares many of the characteristics of propylene glycol, but it has a higher boiling point (232.2˚C vs. 188˚C for propylene glycol) and a higher molecular weight. It’s used more as a fragrance fixative than a humectant, although it can behave as a hygroscopic ingredient. It will reduce the freezing point of your products…

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