Sure, sunscreen is a topical product that helps protect the skin from the harmful effects of the sun’s ultraviolet (UV) radiation. Here are some key points about sunscreen:
1. UV Radiation: Sunscreen protects against two types of harmful UV radiation: UVA and UVB.
2. SPF (Sun Protection Factor): SPF indicates the level of protection against UVB radiation. Higher SPF numbers provide greater protection. For example, SPF 30 blocks about 97% of UVB rays, while SPF 50 blocks about 98%
3. Broad-Spectrum: Look for sunscreens labeled “broad-spectrum,” which means they protect against both UVA and UVB radiation.
4. Water Resistance: Water-resistant sunscreens provide protection for a certain amount of time while swimming or sweating, but they still need to be reapplied according to the product’s instructions.
5. Ingredients: Sunscreens contain active ingredients that either absorb or reflect UV radiation. Common active ingredients include zinc oxide, titanium dioxide, avobenzone, and octocrylene.
6. Application: Sunscreen should be applied generously to all exposed skin at least 15 minutes before going outside. Reapply every two hours, or more frequently if swimming or sweating.
7. Skin Types: Choose a sunscreen suitable for your skin type, whether it’s oily, dry, sensitive, or acne-prone.If you have specific questions about a sunscreen product or its ingredients, feel free to ask!
