In the formula, use 15nm 25% titanium, but it says to use ZnO2 as well, this is using tio2=12.5 and ZnO2=12.5, is that right? Put in what quantity that contains ZnO2 in the formula to get spf 50++.
Hello, this formula will give approximately SPF 45 and PA +++. Please check the sample formula. สูตรกันแดด Physical Sunscreen Currently, the SPF measurement results have not been uploaded, but the R&D staff are expected to upload the results on that page. within this week
by crazyfrog.pk » Fri Dec 14, 2018 4:12 pm