A higher sun protection factor (SPF) in sunscreen isn't necessarily better. Excessively high SPF can clog pores, hinder sweat evaporation, and overburden the skin. It may feel uncomfortable on the skin and isn't suitable for daily use. The best approach is to choose sunscreen with different SPF levels based on varying environments and needs.
2.SPF values do not multiply when layered. The sun protection effect of sunscreen products is determined solely by the highest SPF value present; the protective effect does not accumulate. This means that applying SPF 30 followed by SPF 15 does not equal SPF 45, but rather SPF 30. When layering, apply the higher SPF product first, wait a few minutes, then apply the lower SPF product. Applying the lower SPF first dilutes the effectiveness of the higher SPF.
3.Focus on SPF, not texture
When selecting sunscreen, texture is as crucial as SPF. Opt for lightweight, breathable formulas in spring and summer to prevent excessive oiliness. In fall and winter, choose richer, hydrating textures to lock in moisture. This approach not only protects against UV rays but also helps alleviate seasonal skin concerns.
4. Applying sunscreen once a day is sufficient. Is applying sunscreen just once daily enough? In reality, a single application often proves inadequate unless your outdoor exposure is extremely brief. Reapplication frequency should be adjusted based on specific conditions. Most sunscreens offer sweat resistance for about 30 minutes and water resistance for approximately 80 minutes. For extended outdoor activities, reapply every few hours.
5. A small amount of sunscreen is sufficient
Adults should apply an average of 3 milliliters per arm, 3 milliliters for the face and neck, and 6 milliliters per leg, chest, or back. For extended outdoor activities, reapply every 2-3 hours.
6. Focusing Only on Facial Protection
Sun protection isn't just for your face. When applying sunscreen, consider areas like the face, neck, ears, backs of hands, arms, legs, and feet—especially in summer. These areas all require attention. Therefore, sunscreen products come in formulas suitable for the face and others for the body; choose based on your needs.
7.Thinking you don't need sunscreen if you don't mind getting tanned
Summer sunlight is intense, and occasional tanning from lapses in protection is hard to avoid. But don't stop using sunscreen just because you've already tanned. Don't assume existing melanin will block more UV rays. While skin's melanin does absorb some UV radiation and offers some protection, it won't stop your skin from darkening further with continued sun exposure. So even if you've temporarily tanned, keep up your sun protection consistently.
8.No sunscreen needed on cloudy or rainy days
Many people only apply sunscreen when the sun is strong, assuming clouds or rain block UV rays. However, clouds and rain don't effectively absorb UV radiation. UV rays persist even through haze, overcast skies, and cloud cover. Don't skip sun protection on these days.
9. Sunscreen doesn't need to be cleansed off
After using UVA sunscreen, it's essential to use a dedicated cleanser to ensure all residue is thoroughly removed from the skin. If you skip this step, leftover sunscreen will gradually build up in pores. The more it accumulates, the more likely it is to clog pores, ultimately disrupting the skin's normal functions.