Skin Sun Safety

The ultraviolet (UV) rays of the sun can damage a person’s skin, eyes, and immune system, leading to an increased risk of premature skin aging and even cancer in some cases. However, taking the proper precautions can limit sun damage and protect you from its harmful effects. Sun safety tips include applying a water-resistant sunscreen with a sun protection factor (SPF) of at least 30, wearing protective clothing that covers your skin, and seeking shade.

Speak to a dermatologist if you have concerns about recent sun exposure or new or changing moles, lesions, or rashes.

Common Questions & Answers

What are the risks of sun exposure?

Sun exposure can lead to sunburn, which damages blood vessels and contributes to premature skin aging, including wrinkles, dryness, discoloration, and a leathery texture. Excessive UV radiation also increases your risk of skin cancer.

Two types of sunscreens, chemical and mineral, are available, and they work differently. Mineral sunscreens form a barrier that blocks UV rays from entering the skin, whereas chemical sunscreens convert light to heat, which radiates away from the skin.

The American Academy of Dermatology Association recommends a sunscreen with SPF 30 or higher. Apply it everywhere that could face sun exposure. To protect your face, neck, arms, and legs, you’ll need around 1 ounce of sunscreen — or about as much as would fill a shot glass.

Reapply sunscreen every two hours, or more often if you sweat a lot or are going swimming. This also applies to sunscreens that are labeled “water-resistant,” which are only effective for 40 or 80 minutes, depending on the product.

Wear protective clothing, seek shade, and avoid excessive sun exposure between the hours of 10 a.m. and 4 p.m.

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Resources
  1. Sun Safety. Johns Hopkins.
  2. How Can I Tell if I Have Skin Cancer? American Academy of Dermatology Association.

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