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Cosmetics Formulation Development


ลำดับการใช้ tester กับ Vitamin C E Ferulic

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Order of using tester with Vitamin CE Ferulic

Postby sukanya9379 » Sat Dec 09, 2017 6:37 pm

Inquire..order tester with Vitamin CE Ferulic (Lite), which one should I use first? How long are you apart? Thank you.
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Re: Order of using tester

Postby staff » Mon Dec 11, 2017 11:49 pm

Hello, how to use the product Vitamin C together with any product should be at least 30 minutes apart.
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