Sunscreen or Moisturizer First? Here's the Correct Order

Many people face a common dilemma when getting ready in the morning: should moisturizer or sunscreen be applied first? The general consensus among skincare experts is that moisturizer should always precede sunscreen to ensure optimal product absorption and maintain skin barrier integrity.

The fundamental rule in skincare application is to layer products from the thinnest to the thickest consistency. Moisturizers are formulated to nourish skin tissues and fortify the skin barrier. For these ingredients to work effectively, they require direct contact with clean skin. Applying moisturizer first allows it to penetrate the skin and prepare it for the protective layer of sunscreen.

Reversing the order, by applying moisturizer over sunscreen, can compromise the sunscreen's effectiveness. This can dilute the SPF (Sun Protection Factor) and disrupt the protective shield that sunscreen creates, significantly reducing its ability to guard against harmful UVA and UVB rays. Therefore, applying moisturizer first is crucial for both skin health and sun protection.

An exception exists for certain types of sunscreen. Physical (mineral) sunscreens work by sitting on top of the skin to reflect UV rays, making them essential to apply as the final step after moisturizer. However, chemical sunscreens work by absorbing into the skin to convert UV rays into heat. Some advanced chemical sunscreen formulas are rich in moisturizing ingredients. For individuals with oily skin, using a lightweight chemical sunscreen might allow them to skip moisturizer if the sunscreen itself provides adequate hydration. Nevertheless, for those with dry skin, applying moisturizer first remains the best practice to lock in essential moisture.