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Type: Article

Section: Testing > Method/Process

'[Sunscreen] developers will be able to innovate more efficiently while maintaining high standards of quality and safety for consumers.'

[updated] How ISO's Endorsement of Two Test Methods Will Enlighten Sunscreen Development

After 10 years, sunscreen developers are nearing the finish line for more ethical, cost efficient, reliable and faster testing thanks to ISO's endorsement of two standards. The final vote is in September 2024. Here, two experts explain what this means.

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Testing Tactics: Approaches to Measure Scalp Comfort and Care

This article describes examples of test methods beyond standard skin hydration, sebum and TEWL measurements being used help create scalp care products that address conditions such as inflammation, redness, dandruff, seborrheic dermatitis and more.

What does biodegradable actually mean? There are many misconceptions around biodegradability, even among those involved in the development, substantiation and communication of a biodegradable product. This stretches from R&D and regulatory affairs experts to marketeers, all of whom have a different degree of understanding of the term.

Peeling Back the ‘Biodegradable’ Label

Industry experts have varying degrees of understanding of biodegradability. This article aims to close the gaps by presenting the science, explaining terminology and clarifying calculations and testing to help those vested better understand it.

From 2013-2020, advisor and columnist Trefor Evans, Ph.D., wrote the column series, 'Testing Tactics in Hair' for C&T, which is treasure trove of information for those working in the hair care space. Following is an index, complete with links.

'Testing Tactics in Hair' Column Series — An Index of Works by Trefor Evans, Ph.D.

From 2013-202, adviser and columnist Trefor Evans, Ph.D., wrote the column series, "Testing Tactics in Hair" for Cosmetics & Toiletries, covering methods to measure damage, treatments, claims and more. This is an index of his works.

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Environmental Stress Panel for Evaluating Diesel Particulate Matter==> download our unique Gene Expression Panels Guide at no cost

Genemarkers, a trusted partner for applying genomic technologies to personal care product development, has launched a new testing service to evaluate how product formulations protect or repair skin in response to diesel particulate matter (DPM).

Studies have demonstrated that wild teasel could be a natural source of bioactive compounds, particularly phenolics and iridoids, and have confirmed its high potential for the cosmetic industry. For example, teasel features strong antioxidant activity, especially in leaf extracts

DNA Metabarcoding Tracks Traceability of Naturals: Wild Teasel Case Study

This study authenticates D. fullonum from raw material to final ingredient. It compares D. fullonum and D. sylvestris in a three-step study by: barcoding the raw material, metabarcoding the two extracts and bioinformatics processing.

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Next-generation Sequencing for Personal Care Product Development

Introducing Genemarkers’ NextGen sequencing, a cost-effective method for analyzing differentially expressed genes to detect novel biomarkers. This method can help discover new pathways and biological mechanisms of action for ingredients and formulations.

To assess the potential of citizen science for skin microbiome research, the work described here used a consumer test kit deployed in a pilot study of 59 participants to collect data. The results of a case study and more are outlined.

Citizen Science for Skin Microbiome Research—A 'Microbiome-friendly' Case Study

To assess the potential of citizen science for skin microbiome research, the work described here used a consumer test kit deployed in a pilot study of 59 participants to collect data. The results of a case study and more are outlined.

For multifunctional products such as moisturizing hand sanitizers, the sanitizer claim requires a significant reduction (2-3 log) of a microorganism population while the moisturizer claim requires data showing an increase in skin moisture.

Testing the Safety and Efficacy of Multifunctional Personal Care Products, A Primer

Multifunctional products may offer solutions to consumer challenges but as the needs of consumers grow more complex, so do their safety and efficacy testing. This article provides a primer on these considerations.

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Colorfast Effects: Reflectance to Assess Lip Gloss Water Resistance, A Proposal

This approach is tested for its ability to distinguish waterproof and non-waterproof products, and compared with in vivo results. Proposed here is in vitro method to measure the waterproof properties of lip gloss based on UV/Vis spectrophotometer reflectance values.

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Analyze, Optimize: Ensuring Pollution Won’t ‘Get Under Your Skin’

Anti-adhesion, removability, anti-penetration and cleansing properties were assessed in steps, as described here, to optimize formulas for effective anti-pollution protection. An approach was designed to test cosmetic ingredients and formulas for their abilities to suppress the negative effects of pollution in skin.

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Validate the efficacy of actives, raw materials & products in preventing/repairing skin damage from environmental pollution

Learn more about The Environmental Stress Panel – an innovative gene expression panel developed by Genemarkers, the leader in applying state-of-the-art genomics technologies to personal care product development.

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Fighting AGEs Formation: Upcycled Artichoke Inhibits Glycation, Increases Skin Firmness

Upcycling organic waste into cosmetics has been of interest for the growing sustainability trend—and artichoke, in particular, demonstrates anti-aging activities. Described herein is the development of an upcycled artichoke byproduct, which was tested for effects on skin glycation and elasticity.

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Propanediol Caprylate: Shifting the Microbiome, Sebum Levels and Classic Approach to Dandruff

Propanediol caprylate was previously shown to deactivate Malassezia for dandruff control. In parallel, its effects to shift the balance of Cutibacterium and Staphylococcus in the scalp microbiome, and reduce dandruff and sebum are explored here.

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Safe and Strategic: Hyaluronic and Retinoic Acid Derivative Allays Aging and Acne

A hyaluronic acid and retinoic acid derivative were developed to combine their individual anti-acne and anti-aging efficacies. In vitro and in vivo testing, described here, showed the conjugate penetrated skin to exert the desired biological activities—in low concentrations and without irritation.

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‘Cleaning Up’ Sun Care: Natural Wax/Surfactant Blend for Sustainable Performance

Many clean beauty edicts emphasize the replacement of synthetic ingredients with sustainable and natural-derived materials wherever possible. Maintaining the same or better efficacy, however, poses a formulation challenge. This article explores the efficacy of multipurpose natural wax/surfactant blend to replace several traditional materials with one.

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Comparatively Speaking: Crossmodal vs. Lineal Perception

Lineal perception relates to a direct line between a stimuli and a single sensory interpretation. Crossmodal perception refers to responses and interpretations of various senses to a stimulus, offering product developers opportunities to create novel consumer experiences.

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“COSMETICS LAB” magazine – Quality Control

Read about techniques used for quality control of cosmetics in "COSMETICS LAB" magazine. How to benefit from greener extraction methods, chromatography, NIR and more when demonstrating product safety

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