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Why are tanning salon tans more hazardous than natural suntans?

Dr. Doris Day, MD
Dermatology
Tanning salon tans are more hazardous than natural suntans because both UVA and UVB rays are damaging to skin, and the rays can be up to 10 times stronger than natural sunlight. Watch dermatologist Doris Day, MD, explain the dangers of tanning beds. 
Both natural sunlight and tanning salons are hazardous. Tanning beds have a higher concentration of UVA rays than sunlight. Although UVA rays are less likely to cause burns, people who have ever tanned indoors are 55% more likely to develop malignant melanoma, which is a potentially deadly skin cancer. Natural sunlight additionally has UVB rays, which can also lead to skin cancer and are more likely to cause burns. It is best to avoid tanning salons and limit exposure to natural sunlight. If you plan to be outside be sure to apply sunblock to protect your skin from the sun's rays.
Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)

Tanning beds may be more dangerous because they mainly produce ultraviolet A (UVA) rays. While both ultraviolet A (UVA) and ultraviolet B (UVB) radiation can be harmful to skin, UVA penetrates skin more deeply and may cause additional cellular damage as a result.

Use a sunscreen and wear protective clothing to safeguard your skin from the sun's harmful rays.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.