How does sunscreen work?
Sunscreen works by creating a protective barrier on the skin that absorbs or reflects harmful ultraviolet (UV) rays from the sun. There are two main types of UV rays: UVA, which can cause skin aging, and UVB, which can cause sunburn. Sunscreens are formulated with ingredients that either absorb these rays or reflect them away from the skin, helping to prevent skin damage.
Key points:
- Sunscreens contain active ingredients that block UV rays.
- They can either absorb or reflect harmful sunlight.
- Broad-spectrum sunscreens protect against both UVA and UVB rays.
- Proper application and reapplication enhance their effectiveness.
This text has been fact-checked for accuracy by medino's clinical team.