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Learn about the problem of sunscreen formula. In the formula there is Zinc Oxide EasyDisperse (5%), Titanium Dioxide EasyDisperse (5%) and PMMA Booster (5%) but only got SPF 4.5, so I would like to ask you why you get low spf. Expected to get 25*2 = 50 and ask for advice on how to solve the problem ...

Ask for สารกันแดด for physical sunscreen with Titanium Dioxide 200nm EasyDisperse and Zinc Oxide 200nm EasyDisperse Element - If you want spf 30, what percentage of each? - If you want spf 20, what percentage of each? Thank you in advance

I would like to ask if the following substances can be used with Silky Serum Base ? 1. Licorice Extract ( Licochalcone A ) 2. Centella Asiatica (Madecassoside) 3. Silybum Marianum Extract 4. Mild Preserved Eco and would like to ask if you can use the milk frother when blending, thank you very much.