You should first start by moisturizing. Your skin will better absorb the moisturizer and then be ready to get the sunscreen layer. Indeed, if you apply the moisturizer over the sunscreen, it will prevent it from being a powerful barrier shield and protect it from damaging UV-rays. Furthermore, applying the moisturizer over the sunscreen also makes the moisturizer less effective. Always finish with the sunscreen layer and start with your moisturizer and other elements of your routine. So the best way to make your skincare routine efficient is to start with the moisturizer and then follow with your sunscreen. That way your face cream and suncare will not get diluted and you will still get maximum efficiency of the SPF. In fact, for optimal results, you should wait 20 to 30 minutes after applying your moisturizer before adding SPF. After moisturizing, your skin is ready to be protected from the sun. Indeed, sunscreen should always be applied in second because it creates a barrier and blocks out damaging UV-rays.