The doctor is in: Interview with Dr. Gerstner

Soleil Toujours founder, Valerie McMurray, recently interviewed Dr. Gervaise Gerstner, a board-certified dermatologist in New York City. She is highly sought after for her dermatology knowledge in the beauty industry and is currently a Global Ambassador for L’Oreal Paris. Valerie asked Dr. Gerstner a few of our most pressing questions. Keep reading to see what Dr. Gerstner thinks about the current state of dermatology, skincare, and beauty.
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New FDA Sunscreen Regulations

Read up on the latest U.S. FDA sunscreen regulations.
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Driving & UV Rays

According to a study in the Journal of the American Academy of Dermatology, 53% of skin cancers in the United States occur on the left side - aka the driver's side.

Skin cancers are mostly caused by UV radiation: ultraviolet (UV) A rays are long waves and ultraviolet B rays are short. Car windows are made of glass that blocks UVB rays, but allow 63% of UVA rays to pass through. UVB rays were once thought to be the bigger evil of the two, but studies have shown that long term exposure to UVA can play a role in melanoma in situ development. Invasive melanoma is the deadliest of skin cancers and causes approximately 8,500 deaths every year in the US alone.

A study at St. Louis University Medical School found an uneven gender distribution with left-sided skin cancers. It was found that 54% of skin cancers in men are found on the left side of the face and neck while there were no significant findings when it came to cancer location with women. Researchers hypothesize that over the years, women may spend more time in the passenger seat than men.

These findings are evident with long distance truck drivers. The New England Journal of Medicine published this photo of a 69-year-old man. He presented with gradual wrinkling and thickening of the skin on the left side of his face. The patient reported being a truck driver for 28 years. Chronic exposure to UV rays was a cause of his one-sided skin wrinkling and thickening.


These studies only emphasize how important it is to wear SPF protection every day, even if you are not spending any time outside. Driving exposes the skin the UVA rays and chronic exposure can lead to the formation of skin cancer.

Keep facial skin protected with our face sunscreens here. Remember to apply to the face, neck, arms, and hands - especially when driving!

#SoleilToujours #SafeSunMovement

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Valentine's Day Gift Guide

Valentine's Gift Guide for all the loved ones in your life.
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Harmful Chemical List

Do you know what the HEL List is? Keep reading to find out!

The Haereticus Environmental Lab (HEL) runs the “Protect Land + Sea Certification” program in which companies can get their products certified as environmentally safe. They have a list of harmful chemicals that are natural pollutants in water systems and wildlife. Many of these chemicals are included in product formulations, intentionally, and may or may not be listed on the ingredients list.

The chemicals on the HEL list are:

UV - Chemicals

  • Oxybenzone
  • Octinoxate
  • 4-methylbenzylidene-camphor
  • Octocrylene
  • Para-aminobenzoic acid


  • Methylparaben
  • Ethylparaben
  • Propylparaben
  • Butylparaben
  • Benxylparaben
  • Triclosan

Soleil Toujours is proud to make quality sun care that does not harm the environment, especially the ocean and coral reefs. Our organic, mineral sunscreens and SPF products are not formulated with any of the chemicals listed on the HEL List. Many sun care products contain oxybenzone - known to be harmful to coral reefs. Recently the state of Hawaii banned sunscreens with oxybenzone and octinoxate because these chemicals cause coral death (you can read more about it on our blog post here).

Our products are also free of all parabens - chemicals used as preservatives in the food and cosmetics industry to prevent mold and bacteria growth. Parabens can enter the body through the skin and can disrupt hormones by mimicking oestrogen. An increase in oestrogen can lead to cell division and tumor growths - thus linked to breast cancer. Parabens not only affect humans but have also been found in sea animals.

You can check out HEL here.

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