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Color Changes in Hand Wash
Hi,
I am making a hand wash with this is formula :
SLES 10%, Potasium Cocoyl glycinate 8%, Lauramine oxide 8%, Fragrances 1%, PEG-40 Hydrogenated Castor Oil 2%, Colorant (red) water soluble 0.01%, Propylen glycol qs, Na2EDTA qs, Phenoxyethanol 0.5%, Aqua ad 100%.After 1 week in room temperature the red color changed to brown-orange.
What makes the color changes ? Reaction between surfactant and the fragrance ? Or the colorants was oxidized ? Or any unsuitable surfactants i’ve used in the formula ?Thank you for all the suggestions.
Harry-Indonesia
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