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527 Results

Section: Testing

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Ceramides in Skin Stress: Ultraviolet, Tape Stripping, and Crowding

Stress induces changes in the ceramide content of the skin, and may lead to compromised barrier function or skin diseases. Skin has ways of responding to these stresses, as we review here in the case of skin stressed by tape stripping, organic solvents, overcrowding, and ultraviolet (UV) irradiation.

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One Ingredient, Twice the Benefits for Pores and Age Spots

DSM has created a solution to benefit two skin problems at once. The company’s latest skin care ingredient helps eliminate facial pores and age spots simultaneously. Additionally, helps the skin look younger and improves appearance after the age of 30.

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C + K Introduces Tewameter with Three Probes for Better Efficiency

Courage + Khazaka has upgraded its well-known TEWL and barrier function measurement device, the Tewameter, with three probe heads for better efficiency.

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Comparatively Speaking: The INCI Names vs. Properties of Silicone Surfactants

Surface tension is a ruling factor in the formulator's world. In this edition of "Comparatively Speaking," Tony O'Lenick explains its influence on foam and wetting; he also demonstrates how little the INCI name reveals about a material's properties.

Water Content, Nanoparticles and Skin Penetration in Brazil: Lindo Maravilhoso!

Water content, surfactants, thickeners, actives, nanoparticles and skin penetration were among the hot topics presented at the biennial XXI COLAMIQC congress of the Latin American and Iberian cosmetic chemists. Held May 14-16, 2013, in São Paulo, technical sessions were paired alongside the FCE Cosmetique exhibition and trade show for both the cosmetics and pharmaceuticals industries.

Testing Tactics: REACH and In vitro Alternatives: Skin Irritation Testing

Welcome back to a continuing discussion regarding the new Registration, Evaluation and Authorization of Chemicals (REACH) regulation and its impact on chemical testing. It is the purpose of this series of articles to provide an overview of these existing validated in vitro methods, as well as new methods that are being considered for validation.

In Vitro Methods to Test Materials for Ozone Protective Capabilities

Many markers can be used to indicate epidermal stress. Therefore, it becomes clear that the skin is also a sensitive target to ozone exposure and one that could greatly benefit from cosmetic or personal care materials designed to protect against ozone.

Hair Color Vibrance Factor to Characterize Shine and Color Intensity*

To evaluate the comprehensive effects of shine and color intensity in hair, a hair color vibrance factor has been developed to enable new claims for hair dye formulas and after-dye treatments. Experimental results described here show how varying the ingredients in shine spray and hair dye formulas affect this factor and correlate with subjective panelist assessments.

Testing Tactics: REACH and In vitro Alternatives: Skin Irritation Testing

Welcome back to a continuing discussion regarding the new Registration, Evaluation and Authorization of Chemicals (REACH) regulation and its impact on chemical testing. It is the purpose of this series of articles to provide an overview of these existing validated in vitro methods, as well as new methods that are being considered for validation.

Evaluating Droplet Size in Nanoemulsions from a Novel Emulsifier System

This article describes two sophisticated techniques to measure the diameter of emulsion droplets on the nanometer scale and uses those techniques to test a new emulsifying agent capable of spontaneously creating emulsions with droplet sizes smaller than 300 nm.

Amyris has published its early clinical results for its reportedly “clean” acne treatment formulation, which was found to perform better than other non-natural formulations.

Amyris’s 'Clean,' Fermented Acne Treatment Found to Outperform Industry Standards

Amyris has announced early clinical results for its “clean” and fermentation-based acne treatment, which reportedly was found to perform better than 10 standard industry treatments.

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Testing Tactics in Skin: A View of Visible Light Protection

Blue light, in particular, may be responsible for most of the adverse skin reactions caused by visible wavelengths. This column reviews methods to screen for materials that protect against blue light but also allow its benefits to shine through.

Detecting Estrogenic Endocrine Disruptors in Personal Care Products and Supplements

Endocrine disruptor chemicals (EDCs) are a class of chemicals that has raised alarm for being linked to a wide variety of detrimental effects on human and wildlife populations, e.g., cancers, precocious puberty and obesity. Thus, there is a need to test personal care products and supplements for EDCs, which can be accomplished using the validated bioassay described here.

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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Planting Ideas: Upcycled Rubber Seed Offers a Renewable Cosmetic Ingredient

The sustainable utilization of by-products from the para rubber production industry is presented here for cosmetics. Experiments confirmed the safety of para rubber seed oil, in addition to antioxidant and skin-lightening efficacies.

Epilobium fleischeri extract was noted in the study to be a sebum inhibitor.

DSM Maps Changes in Facial Sebum, Microbiome Post-botanical Treatment

DSM mapped changes in facial sebum and the microbiome after treatment with an Epilobium fleischeri-based sebum inhibitor. Results were presented in a poster during the 25th IFSCC.

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Dual Defense: Protecting and Repairing Hair Holistically, Inside and Out

Cumulative stress encountered by hair during daily grooming causes breakage and other forms of damage. This paper presents a holistic approach to protect hair from within and without by targeting the cortex and cuticle sheath. Fatigue testing and other assessments are carried out to determine efficacy.

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Stress and Psoriasis: How TCM Herbs Can 'Cool' Inflamed Skin

This study explores how TCM can be leveraged in skin products to holistically improve conditions such as psoriasis. In particular, properties of honeysuckle, Rehmannia glutinosa and rhubarb are described and tested here in vivo.

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