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Section: Testing > Sun Protection

To prevent and repair UV-induced skin damage, a sustainable ingredient was developed from Sargassum vulgare, a brown seaweed that naturally evolved phlorotannins to defend against UV damage. The algae was fermented using a proprietary yeast to enrich this bioactive content; the resulting ingredient was tested as described here for skin benefits.

Brown Seaweed Ferment Propagates UV Damage Protection for Skin

To prevent and repair UV-induced skin damage, a sustainable ingredient was developed from Sargassum vulgare, a brown seaweed that naturally evolved phlorotannins to defend against UV damage.

Article Download: A Laboratory Method for Measuring the Water Resistance of Sunscreens

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Pioneering Skin Testing: Download our Informative Poster

Experience the unmatched predictability of Strat-M® membrane – a synthetic, non-animal based model for transdermal diffusion testing.

Comparatively Speaking: SPF and Calculated SPF

In order to prepare the industry for the upcoming Sunscreen Symposium, organized by the Florida chapter of the Society of Cosmetic Chemists, industry expert Tony O’Lenick asks Dennis Lott to explain the difference between SPF and calculated SPF. This is the first of two columns on sun protection.

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Editor's Note: Discontinuity and Your Inner Innovator

One innovative mash-up has been capturing consumer dollars: multifunctional color cosmetics. Whether fortified with SPF or moisturizing properties, makeup with added benefits is driving color sales. In relation, this month, we've created our own color and sun mash-up.

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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.

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Topical and Dietary Paths Provide Synergistic Sun Protection

Lycored, a producer of natural carotenoids, released a study showing that dietary carotenoids may create a synergistic effect with sunscreens to better protect skin against UV damage.

Quantifying Sunscreens and Preservatives in Cosmetic Products

The authors propose and validate an HPLC method for simultaneous quantitation of commonly used commercial sunscreen actives and preservatives in cosmetic emulsions.

Quantifying Benzophenone-3 and Octyl Methoxycinnamate in Sunscreen Emulsions

The authors have validated a high performance liquid chromatographic (HPLC) method for the quantitative determination of benzophenone- 3 and octyl methoxycinnamate present in sunscreen emulsions.

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In vitro/vivo SPF Correlation and Repeatability According to Substrate

This work evaluates the impact of three different substrates on in vitro SPF measurements, and defines experimental conditions to improve their correlation with in vivo values. Evaluations of 32 products, shown here, led the authors to conclude that molded substrates improved repeatability and correlation with in vivo SPF values.

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Sunscreen Data Requests, Misperceptions and the Public Health Crisis

"The FDA is not saying 40% of sunscreens (or whatever) do not meet its rules for safety and effectiveness—not to the extent the EWG is suggesting." But the FDA also is muddying the waters, according to PASS Coalition adviser Michael Werner.

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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.

Interpretation of SPF In vivo Results: Analysis and Statistical Explanation

Methods for determining SPF in vivo are based on a biological response by human skin. To overcome intrinsic variation in these methods, large numbers of volunteers and statistics are required; however, these concepts are often poorly understood or worse, misinterpreted. This article discusses how these values should be interpreted and explains what they mean to formulators.

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Interpretation of SPF In vivo Results: Analysis and Statistical Explanation

Methods for determining SPF in vivo are based on a biological response by human skin. To overcome intrinsic variation in these methods, large numbers of volunteers and statistics are required; however, these concepts are often poorly understood or worse, misinterpreted. This article discusses how these values should be interpreted and explains what they mean to formulators.

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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.

Bernard Fink, of the University of Goettingen, discussed sexual selection and the biology of beauty in relation to skin condition.

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.

Knowledge in sun protection has become more comprehensive, making sunscreen testing and development more challenging. This article explores what we know and what is needed in terms of sunscreen testing, regulation and consumer communication.

Are UV Tests and Protection Headed in the Right Direction?

Knowledge in sun protection has become more comprehensive, making sunscreen testing and development more challenging. This article explores what we know and what is needed in terms of sunscreen testing, regulation and consumer communication.

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[video] News and Insights: SPF Testing, Pigment Restrictions & Cosmeceuticals

Summer has arrived, along with this week's recap from Cosmetics & Toiletries. Watch the video for our take on SPF 100+ testing, novel textures and more!

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