Cosmetics Formulation Development


การใช้ micronized Zinc Oxide ในครีมกันแดด

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Using micronized zinc oxide in sunscreens

Postby lookpednaruk » Mon Mar 12, 2018 1:28 pm

Hello, after reading the information in order to make sunscreen, please ask a few questions. 1. Sunscreen should not be used as micronized Zinc Oxide or micronized Titanium Dioxide right? I read some research in some websites saying that it can penetrate into the skin, right? 2. The details that say Zinc Oxide Micronized "Not suitable for use in sunscreen that requires high dispersion for good sun protection performance" Why is it Micronized and why is the dispersion lower than Non Nano Zinc Oxide performance of Zinc Oxide Micronized micronized Titanium Dioxide It is less than Non Nano Zinc Oxide Non Nano Titanium Dioxide or not 4. In Thailand, there is still no use of non nano sunscreen at all, the main reason is because my face will be white, so I have to mix Microzied or not? Thanks in advance for your answer.
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Re: Using micronized zinc oxide in sunscreen

Postby staff » Fri Mar 16, 2018 10:03 pm

Hello
1.Sunscreen should not be micronized Zinc Oxide or micronized Titanium Dioxide isn't it? Is it true?
It's a research that is done under a single point of view. If you try to study more information, you will find that at the same time There is research done to confirm that the nano type is safe to use. The team couldn't say which side was ultimately correct, but สารกันแดด have been used for a long time and there has never been any confirmation that Affects the body of the user and the FDA / FDA around the world also accepts the safety of using it.
2.Details that say Zinc Oxide Micronized "Not suitable for use in sunscreen that requires high dispersion for good sun protection performance" Why is it Micronized and why is the dispersion lower than Non Nano Zinc Oxide
particle size
3.Waterproof performance of Zinc Oxide Micronized micronized Titanium Dioxide is less than Non Nano Zinc Oxide Non Nano Titanium Dioxide or not [/ quote] particle size Not related to waterproofing
4. In Thailand, not all non nano sunscreens are used in Thailand, the main reason is because the face will be white and must be mixed with Microzied or not?
No, there are other important factors such as the effectiveness of UV protection as well. Particle size It will affect the effectiveness of UV protection.
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