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Germall Plus, liquid (INCI: Propylene glycol, diazolidinyl urea, and iodopropynyl butylcarbamate.) is a broad spectrum preservative that that should be used at 0.1% to 0.5% in the cool down phase of your products. It’s suitable for all but anhydrous products – the diazolidinyl urea is water soluble, so it’s not suitable for all oil creations like scrubs or lotion bars.
To learn more about this awesome preservative, please click here to read a longer post.