Cosmetics Formulation Development


อายุ alcohol แบบมีสารกันเสียและไม่มี

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Alcohol with and without preservatives

Postby nalshampoo » Thu Mar 19, 2020 8:00 pm

1. If making 100 grams of alcohol spray with แอลกอฮอล์ 95% 70g Glycerin e 6 g onion 0.5 g The rest is water, no added กันเสีย How long will กันเสีย กันเสีย ? กันเสีย eg DMDM Hydantoin 0.5g will last how long will it last? In verses 1 and 2, thank you.
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Re: Age of alcohol with and without preservatives

Postby staff » Sun Mar 29, 2020 12:01 am

Hello, that alcohol 70% v/v can kill all kinds of germs. No additional need สารกันเสีย again
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