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Recent in Testing (page 8 of 37)

Delfin Device Makes Sebum Control an Exact Science

Skin sebum measurements are now possible in absolute units and within a 0.1-microgram resolution.

Will the U.S. Finally Ban Animal Testing for Cosmetics?

It's been attempted before, so will U.S. legislators succeed this time in a nationwide ban against animal testing for cosmetics? The U.S. Humane Society believes so; and it appears the industry is on board.

A Safety, Toxicity and Irritation Testing Primer

To ensure a product’s success, especially in light of ‘clean beauty’ tenets, it must be tested for stability as well as safety and efficacy. The following primer offers an overview of key tests to perform as products are developed and prepared for launch. Click through to the digital magazine for more.

A Soft Touch—Concepts in Hair Softness

Softness technically seems the opposite of stiffness but measuring properties related to fiber stiffness is difficult due to hair’s anisotropic structure. And while hair is technically “softened” at elevated humidity, this is the definition of a “bad hair day.” Improving fiber flexibility without adversely impacting breakage seems a sound technical strategy... Click through to read more in the digital magazine.

Words from Wiechers: Who Do You Think You're Fooling?

In this edition, Wiechers admonishes us to “make cosmetic science into something we can be proud of again,” and reminds us that “cosmetic science is only as bad as you and I make it." Read on to learn more about who's "fooling" whom.

Comparatively Speaking: Factors Affecting the Stability of PEG/PPG Dimethicone Formulas

PEG/PPG dimethicone polymers have a water-soluble and silicone-soluble group present in the same molecule. This review considers their stability in water in relation to pH values and over time.

Data Confirms Symrise Deodorant Active is Microbiome-friendly

Symrise reports, in a first-of-its-kind study, the company's antiperspirant active was shown to be safe for the axillary microbiome.

Compact HPLC Column Heater

Powered by a universal benchtop power supply, the compact column heater is easy to use and accurate within 0.1°C.

[video] Valorizing Ingredient Efficacy: On Location with Sederma

In addition to 2D models, Sederma's 3D skin equivalent and other customized models, e.g., to measure pollution, pigmentation, etc., make links between ex vivo and in vivo results, bringing results closer to reality. Learn more in this behind-the-scenes look. Watch now.

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.

Aubergine Mutes TRPV1 and Boosts TRPV-3 and -4 to Reinforce and Comfort Skin

While the causes of sensitive skin are not confirmed, they most likely are due to a neurogenic inflammation after the enhanced activation of sensory proteins in keratinocytes. The present work tested the ability of a Solanum melongena (aubergine) cell culture extract to inhibit sensory mediators of discomfort and activate barrier-boosting pathways.

BASF and CTIBiotech Bioprint 3D Skin with Macrophages

The reconstructed tissue models will be the basis for the development and testing of bioactives for skin care applications.

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