Your Essential Guide to Choosing the Best Sunscreen During Heat Waves

Heat waves bring intense sun exposure, increasing the risk of skin damage. Choosing the right sunscreen is crucial for effective protection.

What SPF Should I Choose?

Opt for a sunscreen with a Sun Protection Factor (SPF) of at least 30. SPF 30 blocks approximately 97% of UVB rays, while SPF 50 blocks about 98%. Higher SPFs offer marginally more protection but are often unnecessary and more expensive. (rei.com)

What Does 'Broad Spectrum' Mean?

'Broad spectrum' indicates that the sunscreen protects against both UVA and UVB rays. UVA rays contribute to premature skin aging, while UVB rays cause sunburn. Both types can lead to skin cancer, so broad-spectrum protection is essential. (health.harvard.edu)

How Do I Apply Sunscreen Properly?

Apply sunscreen generously to all exposed skin areas about 15 minutes before going outdoors. Use approximately one ounce (the size of a shot glass) to cover your entire body. Reapply every two hours, or more frequently if swimming or sweating. (atlantichealth.org)

What Are the Different Types of Sunscreens?

Sunscreens come in two main types:

• Chemical Sunscreens: Contain ingredients like avobenzone and oxybenzone that absorb UV rays. They are lightweight and often invisible on the skin but may not be suitable for sensitive skin. (bannerhealth.com)

• Mineral (Physical) Sunscreens: Contain zinc oxide or titanium dioxide that sit on top of the skin and reflect UV rays. They are less likely to irritate sensitive skin but may leave a white residue. (bannerhealth.com)

How Do I Choose Between Chemical and Mineral Sunscreens?

Consider your skin type and personal preferences:

• Sensitive Skin: Mineral sunscreens are less likely to cause irritation.

• Oily or Acne-Prone Skin: Chemical sunscreens may be more suitable due to their lighter feel.

• Environmental Concerns: Mineral sunscreens are often considered more eco-friendly. (bannerhealth.com)

What Additional Measures Can I Take for Sun Protection?

In addition to sunscreen, consider wearing protective clothing, seeking shade, and avoiding peak sun hours between 10 a.m. and 4 p.m. These steps can further reduce your risk of skin damage during heat waves. (nj.gov)

By understanding these factors, you can make informed decisions to protect your skin during heat waves.

Highlights:

• How to choose and use sunscreen - Harvard Health
• Sunscreen: How to Choose & Apply | REI Expert Advice