Recent in Testing (page 2 of 32)

Ranking Body Creams by Sensory Properties

Ranking descriptive analysis (RDA) is a sensory test from the foods industry. Here, it is applied to evaluate the properties of four body creams, and the results are compared with those of the well-known quantitative descriptive analysis (QDA) profiling. Findings suggest this technique could positively impact sensory testing for product development.

Ashland’s Ingredients Portfolio Advances Worldwide

Ashland integrated its research and development facilities across the world to measure the performance of its ingredients portfolio based on consumer populations in major markets.

Yield Stress Measurements for Personal Care Part II: Methods

The previous article defined yield stress and explained how to calculate the amount needed for a given application. Here, methods for measuring yield stress are compared by determining the values of two materials: a non-thixotropic acrylates copolymer solution, and a thixotropic body wash. The results provide recommendations for methods in terms of relevance, exactness and robustness.

Animal Testing's in the Hot Seat in Korea

Activists for alternatives to animal testing and industry groups hosted a forum to pressure Korea's lawmakers to prioritize investment in new approaches to cosmetics safety testing.

Matmarine Blue Ingredient Leaves Matte Finish

To help produce a product leaving a matte finish to last the whole day, 2% of Lipotec’s Matmarine blue ingredient (INCI: Pseudoalteromonas Ferment Extract) was applied to a BB cream.

Photostability Test for Additional Sunscreen Claims, Part III: New Claim

Proposed here is an in vitro method, based on UV transmission measurements at two irradiation doses, to test and rank sunscreens based on their photostabilities. This approach was used to assess some 107 sunscreens and shows how, by strictly controlling key parameters, comparisons between the photostabilities of products can be made, with potential for new label claims.

Photostability Test for Additional Sunscreen Claims, Part II: Calculations and Results

Proposed here is an in vitro method, based on UV transmission measurements at two irradiation doses, to test and rank sunscreens based on their photostabilities. This approach was used to assess some 107 sunscreens and shows how, by strictly controlling key parameters, comparisons between the photostabilities of products can be made, with potential for new label claims.

Photostability Test for Additional Sunscreen Claims, Part I: Protocol Setup

Proposed here is an in vitro method, based on UV transmission measurements at two irradiation doses, to test and rank sunscreens based on their photostabilities. This approach was used to assess some 107 sunscreens and shows how, by strictly controlling key parameters, comparisons between the photostabilities of products can be made, with potential for new label claims.

SILAB Introduces Reconstructed Skin Models

SILAB Research has created SILABSKIN multi-layer reconstructed epidermis or skin models to test the efficacy of its natural cosmetic actives in vitro.

PCPC Responds to Breast Cancer Action's Ingredient Safety Allegations

The Personal Care Products Council has taken issue with the Breast Cancer Action’s latest statement alleging products offered to women in philanthropic cosmetic kits dispensed by the PCPC contain chemicals linked to increased cancer risk.

Yield Stress Measurements for Personal Care, Part I: Definitions and Basics

The aim of this article series is to properly define and differentiate yield stress from high viscosity, as well as develop a method for assessing whether a sample has a yield stress. In addition, it will illustrate how to determine the amount of yield needed for a given application.

Free Formaldehyde Preservative Stability in Personal Care: Part II—Formulations

As scrutiny of formaldehyde-donor (FD) and other preservative technologies has increased in recent years, additional assurances of the relative safety and benefits of FD technologies are required. This two-part article examines the effects of temperature and pH on free-formaldehyde levels (as detected by C-13 NMR), first in water, then in personal care formulations.

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Practical Modern Hair Science

Practical Modern Hair Science

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Apply Topically: A Guide to Formulating

Apply Topically: A Guide to Formulating

Finally! This book offers practical approach to the formulation chemist’s day-to-day endeavors by: addressing the innumerable challenges facing the chemist both in design and at bench, such as formulating with/for specific properties; offering valuable “tips” to troubleshooting issues regarding ingredient selection and interaction, regulatory concerns that must be addressed early in development, and the extrapolation of preservative systems; exploring the advantages and limitations of raw materials; addressing scale-up and pilot production process and concerns; and much more.Order your copy today.