Chemical sunscreens use avobenzone, oxybenzone or octinoxate to absorb UV rays and protect the skin. They're easier to apply and don't leave a white cast. Texture-wise, chemical sunscreens are more cosmetically elegant and sit better under makeup. However, chemical sunscreens may cause skin reactions in people with sensitive skin.
On the other hand, physical sunscreens use titanium dioxide and zinc dioxide to physically block UV rays and protect the skin. They're more suitable for acne-prone and sensitive skin. Physical options offer instant protection, unlike chemical sunscreens, which take about 30 minutes to be absorbed. However, they can leave a white cast and are often thicker in texture.