Search Cosmetics & Toiletries: Page 19

527 Results

Section: Testing

The 3D printer layers materials such as plastic to form a solid object.

3D Printing 'Popping Up' in Personal Care

Three-dimensional (3D) printing is popping up in many fields, including in cosmetics and personal care development; from behind the scenes, in R&D package concept labs, to presentations at in-cosmetics and the April SCS Symposium—even at home, in one former Harvard student's printable cosmetic device concept.

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[video] Novel In vitro SPF Test Method Validated

Validation criteria have been a shortcoming of in vitro SPF testing; until now. A new method recently was validated; Marc Pissavini, Ph.D., explains, in this video interview.

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Testing Tactics in Hair: Equipment—A 'Buyer's Guide'

This article is focused on these approaches and specifically looks at the relevant scientific instrumentation to provide guidance. There are no “standard” test methods for hair in our industry but the widespread use of several approaches has established them as “best practices."

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Antioxidants in a Nutshell—Pistachio, to be Precise

Researchers from Tufts University in Boston had a nutty idea: What if pistachios could provide skin benefits? As it turns out, this wasn't such a tough nut to crack.

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Solving Sensitivity: In vitro Assays for Sensitive Skin

There are many mysteries regarding sensitive skin, including how to minimize the chance that a product will create a negative response. This article details causes of this syndrome, along with details for testing personal care ingredients for their interaction with sensitive skin.

Carolina Lourenco receives award on behalf of Symrise

German Wool Institute Awards Symrise for Hair Damage Findings

"This award will definitively have an impact on the visibility and credibility of Symrise as a major player in hair research and product development for our customers.”

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Patent Pick: In the Heat of Pleasurable Cosmetic Delivery

According to Estée Lauder inventors, personal care manufacturers are heating up the competition for consumer dollars by using heat in cosmetics and personal care experiences. But one particularly chilling roadblock to their development is the need for a portable energy source; as is described here.

Italian researchers have discovered that a form of vitamin B3 can help protect skin cells from certain types of UV radiation.

Nicotinamide Can Protect Skin Cells From UV-Induced Damage

Italian researchers have discovered that a form of vitamin B3 can help protect skin cells from certain types of UV radiation.

Biomimetic vs. Traditional Skin Moisturization: An In vivo Comparison*

To alleviate skin dryness, humectants and occlusive substances are traditionally used, mostly in combination. A third, relatively recent approach is biomimetic, i.e., active ingredients with lamellar structure containing skin-identical lipids. The aim of this study was to determine whether a biomimetic cream could deliver superior moisturization to human volunteers, compared with a conventional moisturizer containing petrolatum and mineral oil.

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.

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.

Tape Stripping Method in Humans: Comparison of Evaporimetric Methods

The current preliminary study compared the sensitivity and correlation of open chamber device and closed chamber device on a tape stripping human model. The amount of SC removed by tape stripping was also quantified with a protein assay method.

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Claims: The Lifeline to Product Success in the Marketplace

Les Smith, C&T scientific advisor, offers his insights on recent trends in claims substantiation and its direct impact on the role of the cosmetic formulator.

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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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Massive Study Identifies Genetic Indicators for Skin Cancer Risk

The results of a massive study examining some 7,404 cases of squamous cell carcinoma in skin identified genetic associations with this disease, some for the first time.

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Editor's Note: A Peek into Bath and Shower Care

This month, we peek into the bath/shower scene—in a wholesome way, with a focus on issues fundamental to bath and body care. From sensory experiences, and cleansing and protecting skin, to reducing shine and acne, and more. We even spritz in a fragrance refresher.

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Gauging Cosmetic Safety in a Post-Animal Testing World

The testing of cosmetic and personal care products on animals has become widely perceived as a vile, often cruel and inhumane practice. Many countries have either banned its use or have pending legislation to do so. The dilemma this leaves is creating reliable methods to test products for safety and quality.

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Jojoba Oil Found to Stabilize Carrier Oils—Including Hemp

Recent testing found jojoba oil to provide stability in formulations based on several other oils.

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