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Why does the Chalk Cream have sodium hydroxide in the ingredients?
by tape_measure 5y ago
Why does the Chalk Cream have sodium hydroxide in the ingredients?
- c1sc0 5y agoGood question! Because we produce in the EU we need to list all ingredients. The sodium hydroxide is a Ph stabilizer commonly used in low doses in cosmetics. It was actually the FIRST thing I asked our lab when they gave me the final INCI.
- tape_measure 5y agoYes, I suppose having a concentration of hydroxide is good to keep the carbonate from reacting and bursting the packaging.
- c1sc0 5y agoThe way I understood it is that Ph needs to be within a certain band of values in cosmetics and the last ingredient in the INCI guarantees this.