Search Cosmetics & Toiletries: Page 2

87 Results

Section: Testing > Method/Process

WomanFeelingSmellingSoapBubbles_850x425

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.

Computerized Measurement and Correction of Color Cosmetics

With a spectrophotometer and computerized color measurement software, the cosmetic chemist can do both basic color quality control and color formulation and correction easily in the lab.

Stability Testing of Cosmetics: Call for Comments

The Personal Care Products Council is requesting public comments on a new Guideline for Stability Testing of Cosmetics by November 15, 2010.

Green Formulations: Not All Components Are Equal

In the consumer’s mind, a natural or green cosmetic is automatically safe; however, the safety, quality and efficacy of botanical ingredients used in formulations need to be carefully assessed. Stability is also an important issue. Current research is directing analyses of final formulations to evaluate not only their cosmetic raw materials, but also their active materials.

Green Formulations: Not All Components Are Equal

In the consumer’s mind, a natural or green cosmetic is automatically safe; however, the safety, quality and efficacy of botanical ingredients used in formulations need to be carefully assessed. Stability is also an important issue. Current research is directing analyses of final formulations to evaluate not only their cosmetic raw materials, but also their active materials.

dnahand_850

Comparatively Speaking: Gene vs. Protein Expression Studies

What is the difference between gene and protein expression studies to evaluate the efficacy of cosmetic products? Nava Dayan, Ph.D., explains in this edition of "Comparatively Speaking."

QuantumResearch850

Comparatively Speaking: Standard vs. Quantum-level Research

If you've ever conducted an experiment and could not explain the results, it could be due to hidden variables. This leads to what's referred to as quantum-level research, which is described by Nava Dayan, Ph.D., in this edition of "Comparatively Speaking."

Capillary Electrophoresis: ‘Green’ Method to Quantify Cosmetic Components

In relation, in his Ph.D. thesis, Josu López, researcher, developed and applied three “green” analytical methods to simultaneously analyze and quantify various components used in cosmetics.

Clariant Launches Consumer Care Competence Center in Singapore

Clariant opened a new consumer care facility in Singapore.

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.

Article Download: Evaluating Hair Conditioning With Instrumental Combing

Download the complete article here.

Comparing Methods to Measure Porcine Skin Integrity In Vitro

To confirm the integrity of porcine ski prior to penetration tests, published studies show that measuring transepidermal water loss, transdermal electrical resistance or caffeine penetration levels are often chosen techniques. New results demonstrate that

Adobe Stock 380004183

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.

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.

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.

MicrobioTest850

Q&A: How Do Conventional and Accelerated Preservative Tests Compare?

"How do accelerated and conventional preservative testing compare? What can each measure?" This reader inquiry led us to John Yablonski, of BioControl, who provided the following answer.

The model accurately predicted skin permeability and the speed of the UHPLC method could classify it as a high-throughput approach.

Test Model Developed to Predict Skin Permeability of Compounds

A test model published in the Journal of Chromatography A uses retention on octadecyl, cholesterol-bonded and immobilized artificial membrane columns to accurately predict the skin permeability of compounds.

Chemist Lab Data Modeling Dreamstime M 79937211

ECHA on Combining Animal Alternative Data to Assess Sensitization

The ECHA recently published guidance for REACH registrants on reliably combining different sources of animal alternative-derived test data to assess the skin sensitizing potential of chemicals.

Page 2 of 5