Dermatologists debunk common sun care myths, emphasizing that no tan is safe, as UV light is carcinogenic. They highlight the importance of broad-spectrum sunscreen to protect against UVA and UVB rays, noting that SPF over 50 offers negligible additional protection. They stress the need for comprehensive sun protection, including reapplication of sunscreen, wearing hats, and seeking shade. They also clarify that all skin types need sunscreen, debunking the myth that darker skin doesn't require it. Additionally, they explain the difference between physical and chemical sunscreens and recommend using products suited to individual skin types. Finally, they address misconceptions about vitamin D deficiency due to sunscreen use, assuring that adequate vitamin D can be obtained through diet or supplements without risking skin cancer.
Here are the key facts from the text:
1. A tan is a sign of skin damage, not a sign of good health.
2. UV light is a known carcinogen, and there is no safe dose of UV light.
3. 90% of all skin cancers are directly related to exposure to ultraviolet A and B rays.
4. You can get sunburned in the shade, as the sun's rays can reflect off concrete, sand, and snow.
5. The sun's rays can pass through clouds, and even on a cool day or a cloudy day, you can still get UV damage.
6. People with darker skin still need to use sunscreen, as melanin is not perfect and can't provide 100% protection.
7. The five-year survival rate for melanoma is lower for people with darker skin (65%) compared to those with lighter skin (90%).
8. Skin cancers can look different on people with darker skin, and may not be as easily detectable.
9. There is no such thing as "waterproof" sunscreen, but some sunscreens are water-resistant.
10. You should reapply sunscreen after swimming or sweating, and not rely on makeup with SPF for adequate protection.
11. Mixing sunscreen with moisturizer can dilute the sunscreen's effectiveness.
12. You can still get vitamin D even when wearing sunscreen, and there are other ways to get vitamin D that don't increase skin cancer risk.
13. The American Academy of Dermatology recommends using a sunscreen with an SPF of 30 or higher.
14. The sun is strongest between 10am and 3pm, but this can vary depending on the time of day and the season.
15. Physical sunscreens work by reflecting UV light, while chemical sunscreens work by converting UV light to heat.
16. Different skin types have different needs when it comes to sunscreen, and some people may be more sensitive to certain ingredients.
17. It's recommended to have a skin check by a board-certified dermatologist to prevent skin cancer and detect any potential issues early.
18. Once you've had one skin cancer, you're at an increased risk of having another one in the next year.