To use sunscreen effectively, it is important to apply it correctly and in sufficient amounts. Here is a comprehensive guide on how to use sunscreen: Choose the Right Sunscreen:
- Select a broad-spectrum sunscreen with SPF 30 or higher that protects against both UVA and UVB rays.
- If prone to dark spots, use a tinted sunscreen with iron oxide for added protection.
When to Apply:
- Apply sunscreen about 15 to 30 minutes before going outdoors to allow it to absorb into the skin.
- Reapply every two hours, or immediately after swimming, sweating, or towel drying.
How Much to Apply:
- Use about 1 ounce (roughly a shot glass full) to cover all exposed skin on the body.
- For the face, use the "two-finger rule": a line of sunscreen along the length of the index and middle fingers.
- Be thorough and cover often-missed areas such as the neck, ears, tops of feet, legs, scalp (if thinning hair), and lips (use SPF lip balm).
Application Tips:
- Rub sunscreen thoroughly into the skin for even coverage.
- For hard-to-reach areas like the back, ask for help or use spray sunscreen.
- Apply sunscreen as the final step in your skincare routine after moisturizer.
- If wearing makeup or insect repellent, apply sunscreen first.
- Set reminders to reapply sunscreen every two hours during prolonged outdoor activities.
Additional Protection:
- Sunscreen should be part of a broader sun protection strategy including wearing protective clothing, hats, seeking shade, and wearing sunglasses.
Following these guidelines will maximize the effectiveness of sunscreen in protecting against sunburn, skin cancer, and premature skin aging.
