Sun Protection Tips from Dr. Kenneth Mark

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With the recent FDA regulations, we wanted to offer some sunscreen tips for your consideration from board-certified cosmetic dermatologist and fellowship-trained Mohs skin cancer surgeon, Dr. Kenneth Mark. Dr. Mark is a credible expert with four prestigious practices, including two in the Hamptons (he is celebrating his 10th-year anniversary practicing in East Hampton and Southampton this summer), one in Aspen, and one in NYC. He is also a clinical assistant professor of dermatology at New York University.

TIP 1: New FDA regulations on sunscreen
o The main benefit of the new FDA regulations is that there will be increased knowledge and transparency to the consumer for the UVA protection in products and education of SPF designations, which only addressed UVB protection
o Since SPF designation relates to UVB protection from getting a sunburn, these new regulations help consumers understand that it is actually the UVA rays which penetrate the skin deeper and cause harmful effects on the skin, from aging to cancer.

TIP 2: How often should you apply sunscreen
o When in direct sunlight (at the beach, outside), apply sunscreen at least every two hours. If you are sweating or swimming, reapply every 30 minutes after significant water exposure.
o When you are in and out of the sun, apply your sunscreen two or three times throughout the day.

TIP 3: What are the most important ingredients to look for in a sunscreen
o You should always use a sunscreen with a physical blocker, such as zinc oxide and titanium dioxide (both work to block out full UVA and UVB spectrum).
o Most sunscreens have excellent UVB protection, so with products that don't have those physical blockers, look for UVA-blocking chemicals, including:

- Parsol 1789 (a.k.a. Avobenzone)
- Ecamsule
- Mexoryl
- Antihelios
- Helioplex

TIP 4: What sunscreens are recommended
o Z-Silc has a wonderful sunscreen that has a full range of UV protection and rubs in smoothly.
o I would also recommend Neutrogena Ultra Sheer Body Mist, which contains Helioplex.

Buy Now, Z-Silc Sunblock SPF30, $35.50
Buy Now, Neutrogena Ultra Sheer Body Mist Sunblock SPF30, $8.99


Dr. Mark is a Fellow of The American College of Mohs Surgery, the most prestigious group of Mohs surgeons in the world, whose membership is limited to those who have successfully completed a nationally recognized fellowship program. Dr. Mark spent two additional years of training after his dermatology residency to become an expert in Mohs, plastic reconstructive surgery, and cosmetic procedures. As proof of his expertise, Dr. Mark lectures at national meetings, including the Orlando Dermatology and Aesthetic Conference, where in January of 2011 he demonstrated fillers and Botox live on-stage in front of 600 attendees. Also a clinical assistant professor of dermatology at NYU, Dr. Mark was honored as one of the best doctors of 2010 in a peer-based evaluation and is a Fellow of the American Society of Dermatologic Surgery.With two practices in the Hamptons, one in Aspen, and availability in Manhattan, Dr. Mark is the authority for all dermatological needs. He is a true injectable expert in cosmetic procedures, including Botox and fillers, laser surgery, Mohs skin cancer surgery and reconstructive surgery (skin grafts and flaps). He also brings the latest innovations to your daily skin-care regimen with the Dr. Kenneth Mark Skin Care collection.