In all of these cases, to achieve accurate test results, the researchers must apply the sunscreens in precise amounts and distribute them uniformly across the test surfaces. Labs that test sunscreens also examine how the formulas perform when applied to acrylic plates, quantifying the amount of UV radiation that passes through. The FDA requires that these tests be done on at least 10 people. Labs that test sunscreens recruit volunteers who are exposed to UV radiation from sun lamps while wearing sunscreen and not wearing it (and, in the case of “water-resistant” formulas, wearing these sunscreens before and after water exposure).
Among other things, the FDA considers lab data on a given sunscreen’s SPF value, broad-spectrum protection, and water resistance. To obtain marketing approval from the agency, sunscreen makers must submit data showing that their products are safe and effective. The FDA regulates sunscreens as over-the-counter drugs. Goldstein, former dean of the University of Pittsburgh Graduate School of Public Health. We also spoke with toxicologist Luoping Zhang, an adjunct professor at the University of California Berkeley, as well as environmental toxicologist Bernard D.
#THINKBABY SUNSCREEN REDDIT SKIN#
And we consulted 10 dermatologists: Jenna Lester, an assistant professor of dermatology at the University of California San Francisco School of Medicine’s department of dermatology Vinod Nambudiri, a dermatologist at Brigham and Women’s Hospital in Boston Belinda Tan, a dermatopathologist and co-founder of People Science Lawrence Eichenfield, chief of the pediatric and adolescent dermatology division at Rady Children’s Hospital–San Diego Rachel Herschenfeld of Dermatology Partners in Wellesley, Massachusetts Steven Wang of Hoag Memorial Hospital Presbyterian (PDF) in Newport Beach, California, who leads the Skin Cancer Foundation’s photobiology committee Lindsey Bordone of ColumbiaDoctors in New York City Erin Warshaw, a professor of dermatology at the University of Minnesota Medical School pediatric dermatologist Patricia Treadwell of Indiana University dermatologist Henry Lim, a Detroit-based Skin Cancer Foundation spokesperson and Sophie Balk, a pediatrician at the Children’s Hospital at Montefiore, a professor of pediatrics at Albert Einstein College of Medicine, and a spokesperson for the American Academy of Pediatrics. We also spoke with Lisa Quale, a health educator at the University of Arizona Cancer Center.
To find the best sunscreens, we spoke with cosmetic chemists Ron Robinson, Akshay Talati, and Perry Romanowski.
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