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Cosmetics Formulation Development


การจด อย. ต้องมีค่า ph เท่าไหร่ค่ะ

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What is the ph value for FDA registration?

Postby ora-buy » Thu Dec 26, 2019 10:59 am

Normally, the cream that has notified the FDA that customers can sell it must have a ph value. How much?
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Re: What is the ph value for FDA registration?

Postby staff » Thu Dec 26, 2019 9:17 pm

Hello, TIS. 478-2555 defines acidity - alkalinity. of cosmetics used on the skin is in the range of pH 3.5 to 7.5
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