While our products are based on the natural sunscreen barrier Zinc Oxide because they are not tested as sunscreen products but are makeup, we are not allowed to make concrete sunscreen claims. But we can share the following information with you in regards to the effectiveness of Zinc Oxide as a physical sun barrier & the amounts contained in our signature products.This gives our products the following approximate SPF Ratings based on Zinc Oxides rating of 1% equals 1SPF :BB Creams at 20% Zinc Oxide have an approximate SPF of 20Liquid Foundations at 28% Zinc Oxide have an approximate SPF of 28Mineral Powder foundations at 65% Zinc Oxide have an approximate SPF of 40+*Legally we can't claim a certain level of Sun Protection Factor without having our products come under scrutiny by the TGA.