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Section: Cosmetic Ingredients > Actives

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‘Very’ Water-resistant Sunscreens

Water-resistance is a key parameter for today’s sunscreens, and there are a number of formulation strategies that can be used alone or in combination to achieve this effect, including: anhydrous formulation, w/o emulsions, film-forming polymers, dissolution of water-insoluble substances with alcohol, low levels of emulsifiers, and entrapping filters in liposomes. These are detailed here.

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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.

Sunscreen Formulation and Testing

The author reviews SPF testing methods and sunscreen components (actives, active solvents, water-resistance agents and emulsifiers) that assist the formulator in the art and science of sunscreen formulation.

Research Pathways to Photostable Sunscreens

This article provides a visual depiction of pathways that UV filters undergo when exposed to solar radiation; such pathways often lead to photo-instability. A fluorescence technique is described that has led the author to identify compounds that preserve photostability in a novel manner— by quenching the UV filter’s singlet excited state.

Research Pathways to Photostable Sunscreens

This article provides a visual depiction of pathways that UV filters undergo when exposed to solar radiation; such pathways often lead to photo-instability. A fluorescence technique is described that has led the author to identify compounds that preserve photostability in a novel manner— by quenching the UV filter’s singlet excited state.

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Latin Americans Need Better Sunscreens

Consumers need extra photoprotection in Latin America. Why? Marcelo de Paula Corrêa explains.

The hybrid sunscreen is formulated with sodium hyaluronate, panthenol and allantoin. It is said to be dermatologist-approved and specifically designed to complement acne treatments.

Apostrophe Launches Acne-friendly Sunscreen

The hybrid sunscreen is formulated with sodium hyaluronate, panthenol and allantoin. It is said to be dermatologist-approved and specifically designed to complement acne treatments.

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Patent Pick: Aerogels Advance Sunscreens

While white, zinc oxide-nosed lifeguards in the movies made some young hearts skip a beat, today's consumers don't go for that look. L’Oréal's new aerogel particle composition may solve this pasty dilemma.

Sunscreen Stabilizer for Improved SPF

The photostabilizer quenches the singlet excited states to slow down photodegradation.

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[podcast] Making Sunscreens Cleaner and Clearer

In this interview, sponsored by Siltech, Brian Allen explains how the company combined its silicone technology with zinc oxide to create a reef-safe ingredient and prototype formula with a good EWG rating, USDA Biopreferred certification and whitecast rubout time reduction.

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[podcast] Consequences of Hawaii's Sunscreen Ban

In this podcast, renowned cosmetic regulatory expert David Steinberg walks us through Hawaii's recent sunscreen law, the "junk science" backing it (as he refers to it) and its broader implications.

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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.

Hawaii to Ban Certain Sunscreen Chemicals

Legislation was passed by the Hawaii state senate that, if signed by the governor, would prohibit the sale of sunscreen products containing certain ingredients. This move was in response to research showing their potential damage to coral reefs.

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FLSCC Incites Regulation Debate on Sunscreens

The Florida chapter of the Society of Cosmetic Chemists (FLSCC) held its 2011 Sunscreen Symposium on Sept. 15-17, 2011. The event’s theme, “The UVB/UVA Balancing Act: Choices and Change,” was supported not only in the presentations but was also reinforced through attendee questions and reactions to recent sunscreen regulation.

Sunscreen Formulas With Multilayer Lamella Structure

The multilayer lamellar structure in sunscreens containing phosphate emulsifiers plays key roles in the emulsion rheology and in enhancing deposition of sunscreen oil on skin surface, thereby improving the SPF water wash resistance.

Zinc about it! comprises mineral-based sunscreens of Symrise's Neo Heliopan, suitable for a range of products including sun care for kids, sports and sensitive skin.

Symrise Highlights its Mineral-based Sunscreens

The mineral-based sunscreens based on Symrise's Neo Heliopan ingredient are suitable for a range of products including sun care for kids, sports and sensitive skin.

Researchers Investigate Photocontact Allergy in Sunscreens

Researchers at the University of Gothenburg and Chalmers University of Technology have investigated what happens when sun care products break down in the presence of UV radiation to better understand photocontact allergy with this process.

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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.

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