Cosmetics Formulation Development


Stabilized vitamin c

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Stabilized vitamin c

Postby pink.punk.ss » Fri Jun 01, 2018 4:48 pm

just got stabilized vitamin c , so the Ph value was measured in order to adjust the alkalinity to higher than 3.5. to request a notification number. But when using paper to measure Ph. Why is Ph around 4.5? Is it like this for every lot? or each Lot.ph is not equal Actually, when I read the details, I saw that the Ph would be at 2-3. Must add alkali to request a notification number But now it measures 4.5 Please answer me where I am wrong. Or do you have to use something to measure ph in order to get an exact number?
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Re: Stabilized vitamin c

Postby staff » Wed Jun 06, 2018 9:26 pm

Hello, to วัดค่า pH of stabilized vitamin c can be difficult. because there is no water as an element The correct way to measure, members must take stabilized vitamin c diluted in water, e.g. at 10-20%, then measured. So it will be able to get readings. pH will be able to measure. only in liquids containing water.
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