Cosmetics Products Analysis


สอบถามเรื่องการเตรียมตัวอย่างเพื่อวัดค่า SPF ค่ะ

sharing your analysis of cosmetics products on the market

Ask about sample preparation for SPF measurement.

Postby thanatchaporn.ra » Thu Nov 30, 2017 10:39 am

Sunscreen when we are going to test the SPF, can we dissolve it in water? And if the ethanol diluted with water will be able to dissolve the sunscreen? Thank you.
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Re: Question about sample preparation for SPF measurement

Postby staff » Thu Nov 30, 2017 9:04 pm

Hello, the SPF measurement must be measured in the form of the formula that you want to measure. Do not dilute or dissolve anything, for example, if the formula is a gel sunscreen. or sunscreen It must be measured in the condition that the formula is gel. or cream Not to be dissolved or diluted in any way.
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