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Section: Testing > Sun Protection
SPF/Sun
Effective Sunscreens for Everyone Under the Sun
Today, we take the effectiveness of sunscreen products for granted. As the industry knows, this performance is not simply a happy coincidence. Here, we review the steps in the sun care R&D process and consider where questions may arise.
Methods/Tools
Unexpected Paths to Sunscreens
Teleportation was once science fiction. Today's it's somewhat of a reality, if you consider how
Facebook Live, Facetime, Skype,
etc., transport our
likenesses
through time and space. I sense this indirect path may be the future to sunscreens.
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.
Event Coverage
J&J Points to Collaboration and 6 Areas for Future Growth
“We need to openly publish our scientific data and challenge each other to progress,” said J&J's Josh Ghaim, Ph.D., during the IFSCC 2016 Congress. “We can then align standards and simply let the competitive technologies and products speak for themselves.”
Sun Protection
IFSCC Has Some Fun with Sun
Sunscreen failure, SPF as a myth, an alternative vitamin D and others were topics of discussion at the sun care session during the IFSCC Congress. Following are some highlights.
Skin Care
Anti-pollution Skin Care: It's Real
'No kidding it's real,' you're probably thinking. Like naturals, though, at first it felt more like a passing fad. Now we know better, thanks to new research, some of which was presented in London earlier this year.
Sun Care
Smart Sunscreen Packaging Shows How Long Until You Bake
Imagine smart packaging that tells the consumer when it's time to reapply another glob of sunscreen. Well, it's already on the horizon.
Consumers/Market
Infrared-y for Beauty
Anti-infrared product claims are on the rise in Asia and around the world.
SPF/Sun
Sunscreen Saga Continues, Thanks to EWG
The FDA and PCPC came to the industry's defense this week, when the Environmental Working Group called out sunscreen makers for adding anti-inflammatory and antioxidant ingredients to products, to allegedly "mask" signs of sunburn and falsify SPF ratings.
Literature/Data
Patent Pick: Immersion SPF
Wet skin-application in sunscreens is the latest and greatest phenomenon in the once-stagnating sun care market. But a new invention is claiming not just wet, but underwater skin application. Is this the next level of expectation?
Sun Protection
SPF Testing: Who's Got Their 'Backs?'
"Isn’t it time for governments and industry to standardize an in vitro SPF test to replace human testing?" Karl Laden, Ph.D., of Alpa Cosmetics, asks in this brief commentary. What do you think?
Efficacy
Wet Skin Factor for Sunscreens: An In vitro Method, Part II
Sunscreens designed for application to wet skin are popular in part due to convenience, skipping the drying step completely. In relation, these authors propose a new in vitro test to compare the wet skin factor of sun care products. Here, 20 products were tested and compared according to several conditions in order to define the best parameters for the method.
Efficacy
Wet Skin Factor for Sunscreens: An In vitro Method, Part I
Sunscreens designed for application to wet skin are popular in part due to convenience, skipping the drying step completely. In relation, these authors propose a new in vitro test to compare the wet skin factor of sun care products. Here, 20 products were tested and compared according to several conditions in order to define the best parameters for the method.
Methods/Tools
What is Light? A Brief History of Light and Its Behavior
This primer provides cosmetic scientists, engineers and physicists with an understanding of light. The quantum mechanics of history continue today as a guiding paradigm for computers, satellites and mobile communications, in addition to the cosmetically related fields of photoprotection and visual effects imparted through makeup to change appearance.
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.
People
Meet DSM's New Advisor
Uli Osterwalder is the new senior scientific advisor of sun care for DSM Personal Care.
Literature/Data
Patent Pick: Water and Sweat to Boost SPF?
Water and sweat are typical antagonists in the life of a sunscreen formula. Inventors from Shiseido have found a way for them to play key supporting roles, in this patent application. The plot thickens.
Sun Protection
SPF Tests Reveal No Ideal In vitro Substrate Exists
In vitro SPF measurements are challenged by reproducibility, repeatability and correlation with in vivo values. Here, the authors assess sunscreen adhesion to the test substrate support, since poor adhesion produces bad results. Surface substrates are characterized by functional group, charge, wettability and surface morphology. Eight w/o and o/w emulsions also are tested. Results indicate an ideal in vitro test substrate does not exist.
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