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White residue in the Cleansing foam, how to avoid this problem?
Hello, I made a natural cleansing foam with these ingredients:
Aqua
Hydrolate Citron
Glycerin
Sarconsinate
Cocoglucoside
Panthenol
Alpha Arbutin
Optiphen bd
Citric acid
but in the bottom of the bottle there is like a white powder residue, what it could be please? NB the arbutin does not exceed 0.12% could be not dissolved? And which solution to avoid this problem.
Thank you all.
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2 Replies
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It could be hydrolate reacting with some of the other ingredients into insoluble compound, which falls down to the bottom.
In any case you can exclude some ingredients and see if the residue occurs again. E.g. make the same formula, but without arbutin and observe. Or the same formula, but without hydrolate and observe
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Thank you so much. I will do it and search the origin of the problem.
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