Good day everybody I am currently formulating a non-emulsion claymask paste in a jar and I am really having troubles with formulation. The formulation are as follows:
Calcium Carbonate 34.34%
Rose Oil 0.09%
DMDM hydantoin 0.31%
The problem is the fumes of dmdm hydantoin, which is highly irritating to the eyes. Can anyone recommend a preservative for this system? I have also tried salinip XB ( blend of phenoxyethanol, propyl paraben and methyl paraben ) at different concentration ( 1%, 0.5% ). However, it produced a highly irritating sensation in the skin as it is left longer on the skin.
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