In the News

What is the Real Relationship between Sun Exposure, Skin Cancer, and Vitamin D?

Tuesday, May 21, 2024
Published on May 19, 2024

Several studies conclude that regular, sensible, non-burning sun exposure throughout the lifetime, and higher vitamin D levels, are related to decreased incidence of melanoma and increased melanoma survival rates

Key Points

  • Two important distinctions about the relationship between sunshine exposure and skin cancer should be made: 1) intermittent, or sudden, drastic exposure to high intensity sunlight (resulting in sunburn) does increase the risk of skin cancer, and 2) regular, moderate, non-burning exposure to sunshine (sensible sunshine exposure) has been associated with lower risk of skin cancer
  • Moderate, non-burning sunshine exposure initiates specific repair mechanisms within skin cells, including DNA repair enzymes and the production of local vitamin D, which work to prevent damage accumulation; vitamin D synthesized in the skin has several anti-cancer properties, including roles in cell differentiation, cell death, cell adhesion, and oxidative stress, all of which can help protect against the development of cancer
  • Several studies are reviewed to demonstrate how increased, sensible sunshine exposure and increased vitamin D levels are related to decreased melanoma incidence and mortality, decreased tumor size, and improved response to melanoma treatment

The sun has gotten a bad reputation because of the association between ultraviolet (UV) exposure and skin cancers.
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Many Types of Cancer Reduced with Higher Amounts of Lifetime UVB and Sunshine Exposure

Friday, May 17, 2024
Published on May 15, 2024

Research over the last few decades have confirmed a significant relationship between increased lifetime sunshine and UVB exposure and a decreased risk of many different types of cancer

Key Points

  • Studies describing the relationship between UVB exposure, sunlight, and vitamin D on the incidence of colon, breast, ovarian, and other cancers have been published by the Garland brothers and other authors, with a recurring theme of decreased cancer risk with increased UVB and vitamin D; a study by Munoz and Grant found a significant association between increased solar radiation and and a decreased incidence of 23 different types of cancer
  • A significant dose-response correlation between UV exposure and breast cancer risk was found in one study, such that women in the highest exposure groups had a 30% lower risk of breast cancer compared to women in the lowest exposure groups; overall, this study saw a negative correlation between UV exposure and breast cancer risk, especially among women over 40 years of age, and women who did not tan or who covered their arms and legs while in the sun also had a higher risk of breast cancer
  • A detailed analysis of studies on sun exposure and melanoma and found that continuous, regular sun exposure was not associated with melanoma, but rather, sunburn doubled the risk of developing melanoma and intermittent, high-intensity sun exposure proposed a 61% increased risk for melanoma

Cancer is the second leading cause of death in the United States, second only to death from heart disease.
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Choosing sunscreen: New study finds most items tested offer poor protection or contain harmful ingredients

Tuesday, May 14, 2024

Choosing sunscreen: New study finds most items tested offer poor protection or contain harmful ingredients

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Have We Been Overdoing It On the Sunscreen?

Tuesday, May 14, 2024

Have We Been Overdoing It On the Sunscreen?

The latest SPF discourse has a lot to unpack.
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New Sunshine – Register to gain valuable insight into extending your busy season. May 21st 11am EST

Tuesday, May 14, 2024
Register to gain valuable insight into extending your busy season.
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Salon owners – it's time to join forces and make a mark in the tanning industry. To maintain and develop a prosperous indoor tanning industry in Canada by educating Canadians on how to maximize the benefits while minimizing the manageable risks of responsible UV exposure. We will pursue continuous improvement of the perception of tanning amongst Canadians through scientific facts and research that support indoor tanning as an intelligent, controlled choice for UV exposure.

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