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Section: Testing > Sun Protection
Sun Protection
The Best Sunscreen? The One People Will Use.
This guest advisor commentary comes from regular
Cosmetics & Toiletries
contributor and photochemistry expert Craig Bonda, president of Inception Partners, LLC, and technical consultant to the sunscreen industry.
Sun Protection
Analytical Device Raises the Bar on UVA-PF
A new UV transmittance analyzer has been designed to exceed Colipa's UVA protection factor (UVA-PF) requirements to support the development of higher protection factor sunscreens.
Literature/Data
Patent Pick: Progress on the SPF/UVA-PF Front
The sun was shining on Unilever inventors when they uncovered a new chemistry combination to improve SPF and UVA-PF factors for enhanced sun protection. A new patent application explains.
Sun Protection
[video] Student Poster: The Effects of Blue Light on Skin
Lisa Stevens, of Azelis and the University of Cincinnati, explained her research on the effects of blue light in skin during in the most recent TeamWorks conference and exhibition.
Sun Protection
Testing Sun Protection Factor on Skin
There are various test methods set by global governing bodies for SPF protection, but this article will discuss the five time-point internationally approved ISO 24444 method.
Event Coverage
Sunscreen Symposium Day One Enlightens Attendees
Cosmetic scientists from around the world descended on Walt Disney World for the two-day 2015 Sunscreen Symposium featuring skin safety, boosting sunscreen efficacy, testing, formulations and more.
Literature/Data
Patent Pick: Shiseido Sets Sights on Sun
Whitening may be a preference for skin care actives, especially in the East, but when it comes to sun protection, it's all about transparency. That's where this Shiseido invention is 'clearly' focused.
Regional
US FDA Pushes Sunscreen Reform on Three Fronts
The U.S. Food and Drug Administration has announced three new efforts to advance its framework for sun protection products including Maximal Usage Trials (MUsT)—just ahead of summer vacation and in line with #DontFryDay.
Sensory
UV Transmission Assessment: Influence of Temperature on Substrate Surface
This work evaluates the impact of temperature on test substrate surfaces during the application, spreading and drying steps of the in vitro method to measure ultraviolet (UV) transmission. The authors work in a range between 20°C and 35°C, and demonstrate that controlling temperature is a key test parameter that should be strictly controlled to ensure reliability.
Hair Care
Combing Through Sun and Pollutant Effects on Hair
Trefor A Evans, Ph.D., institute fellow at TRI Princeton and long-time
C&T
scientific advisor, offers his insights on the latest developments in hair science and what they mean to the cosmetic formulator.
Sun Protection
Influence of Pressure During Spreading on UV Transmission Results
This work evaluates the impact of applied pressure during sample spreading on the in vitro measurement of UV transmission. The authors work in a range of pressures between 50–200 g and demonstrate that pressure control is a key parameter that should be strictly controlled to ensure the reliability of test results.
Sun Protection
Influence of Pressure During Spreading on UV Transmission Results
This work evaluates the impact of applied pressure during sample spreading on the in vitro measurement of UV transmission. The authors work in a range of pressures between 50–200 g and demonstrate that pressure control is a key parameter that should be strictly controlled to ensure the reliability of test results.
Sun Protection
UV Transmission Assessment: Influence of Temperature on Substrate Surface
This work evaluates the impact of temperature on test substrate surfaces during the application, spreading and drying steps of the in vitro method to measure ultraviolet (UV) transmission. The authors work in a range of temperatures, between 20°C to 35°C, and demonstrate that controlling temperature is a key parameter and should be strictly controlled to ensure reliability.
Sun Protection
Report: Superdrug Commits to Increase Sunscreen Testing on Darker Skin Tones
Superdrug has reportedly committed to include at least 35% of skin types 5 and 6 in its sun cream and skin care trials.
Method/Process
AmorePacific, Hanyang Univ. Dynamically Visualize UV Dose on SPF-protected Skin
Work by AmorePacific and Hanyang University, Seoul, published in
Skin Research & Technology
, reveals a dynamic approach to visualize UV dose based on MED, weather, outdoor activity, etc., on SPF-protected skin.
SPF/Sun
FDA Publishes Opinion on Two Sunscreen TEAs and Is Urged for More Action by PASS
The end of February was busy for the U.S. Food and Drug Administration (FDA), which published two letters on the Time and Extent Applications (TEAs) for diethylhexyl butamido triazone (Uvasorb HEB) and amiloxate (Neo Heliopan E 1000), finding insufficient scientific evidence to claim either as generally recognized as safe and effective (GRASE) and denying their addition to the OTC Sunscreen Monograph.
SPF/Sun
Guiding Sunscreen Traffic Across the Globe
Sunscreens are classified and regulated differently around the world. For instance, the United States considers sunscreens as OTC products, while Canada has a two-part classification system; other places classify sunscreens as cosmetics. Labeling and registering differ worldwide as well. In some cases, labels require certain Drug Facts or safety registration numbers, among others. This article reviews these differences.
Sun Protection
Determination of the In Vitro SPF
A ring test at six European test centers showed that SPF evaluations with good reproducibility and comparability could be obtained by an in vitro protocol measuring either transmittance or erythema-effective irradiance of product samples applied on PMMA plates.
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