Cosmetics Formulation Development

An example of a sunscreen formula. SPF Protect Ultra™ II 15% 1. SPF Protect Ultra II 15% 2. Milk Lotion Maker 3% 3. Satin Cream Maker 0.7% 4. Water 80.3% 5. Mild Preserved Eco 1% of yield formula spf50 pa++ if desired spf50 pa++++(4plus) which substance should be added to the formula to achieve pa++++ and the amount to be used (To send the production and check the accurate results again)

Hello, in case you want to have a high PA, you may need to add Zinc Oxide in the formula.