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Section: Testing > Sun Protection
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.
Efficacy
How to Prove 'Rub-resistant' Sun Protection
Today’s consumers desire sunscreens that are not only more effective against UV radiation, but also provide water, sand, sweat and rub resistance. These authors propose a new in vitro test to assess and compare rub resistance factors, which they illustrate here by testing 20 sun care products.
Sun Protection
New Sunscreen Allows Body to Produce Vitamin D
Researchers discovered altering ingredients in sunscreens allows the body to produce vitamin D, which led to a new sunscreen development called Solar D.
Sun Care
Sunscreens and UV Exposure: A Q&A with Vincent Hubiche
Gattefossé SAS' Vincent Hubiche shared insight on how consumers need to be better informed with the amount of sunscreen they wear and the climate’s influence on sunscreen application.
Companies
Croda to Increase Global Reach and Innovation with Lab Expansions
Croda lab expansion and renovation project at North American HQ adds innovation, education and efficiencies.
Efficacy
Photostability Test for Additional Sunscreen Claims, Part III: New Claim
Proposed here is an in vitro method, based on UV transmission measurements at two irradiation doses, to test and rank sunscreens based on their photostabilities. This approach was used to assess some 107 sunscreens and shows how, by strictly controlling key parameters, comparisons between the photostabilities of products can be made, with potential for new label claims.
Efficacy
Photostability Test for Additional Sunscreen Claims, Part II: Calculations and Results
Proposed here is an in vitro method, based on UV transmission measurements at two irradiation doses, to test and rank sunscreens based on their photostabilities. This approach was used to assess some 107 sunscreens and shows how, by strictly controlling key parameters, comparisons between the photostabilities of products can be made, with potential for new label claims.
Efficacy
Photostability Test for Additional Sunscreen Claims, Part I: Protocol Setup
Proposed here is an in vitro method, based on UV transmission measurements at two irradiation doses, to test and rank sunscreens based on their photostabilities. This approach was used to assess some 107 sunscreens and shows how, by strictly controlling key parameters, comparisons between the photostabilities of products can be made, with potential for new label claims.
Event Coverage
Alphorns, Cowbells, Magic and Gaming at IFSCC Zurich, part IV
The 23rd IFSCC Congress, held Sept. 21-23, 2015, reported “more facts and less illusions” to some 550+ delegates from across the globe at the forefront of cosmetic product innovation.
Sun Care
W/O/W Technology to Enhance Organic UVA/UVB Sunscreen Performance
A new water-in-oil-in-water technology is described here that functions as an isolating shield, preventing UV filter particles from aggregating and helping their dispersion in formulas. The technology is shown in vitro and in vivo to improve SPF performance, UVA/UVB wide band high protection ratio, SPF sustainability and safety concerns regarding skin penetration.
Event Coverage
Sunscreen Symposium Day Two: Diverse Outlooks Engaged
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.
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.
Regional
Bill to Phase Out Animal Testing Reaches US House
The Humane Cosmetics Act aims to end animal testing for cosmetics after a one year phase in and it would also phase out the sale of animal-tested cosmetics in three years.
SPF/Sun
New U.S. UV Filters and the Cosmetic Outlook in Canada for Sunscreens
Skin cancer is the most common cancer today, but only recently has industry pressure and political leadership compelled changes in the North American regulatory paradigm of sunscreen products. The passage of the Sunscreen Innovation Act in the United States and the suggestion to regulate sunscreens as cosmetics in Canada would give regulators the tools to reboot a stalled approval system.
Literature/Data
Research Suggests a Need for After-sun Sunscreen
According to a report from Yale, the damage caused by UV radiation continues hours after the sun exposure occurred. In the described study, melanocytes generated CPDs both immediately and hours after UV exposure had ended. This may suggest the need for “evening-after” sunscreen, designed to block energy-transfer.
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