Chemistry

Phenoxyethanol as a Safe and Important Preservative in Personal Care

Apr 23, 2014John Krowka, PhD, and Linda Loretz, PhD, Personal Care Products Council; Karolina Brzuska and Jose Filipe Almeida, PhD, Cosmetics Europe; Megan Diehl and Stanley J. Gonsior, The Dow Chemical Company; Andress Johnson, PhD, and Stephané Sellam, Thor Specialties; and Steffen Bade, PhD, and Samantha Champ, BASF

The effective preservation of personal care products and cosmetics is vitally important to inhibit microbial growth. Phenoxyethanol has a long history as an effective preservative, with well-documented human and environmental safety profiles. This is a valuable option in formulators’ and microbiologists’ toolboxes for safe and effective control of microbial growth, as is reviewed here.

Under-eye Elasticity Through Film-forming with Betty Yu, PhD

Feb 21, 2014Katie Anderson, Cosmetics & Toiletries

Betty Yu, PhD, and her team at Living Proof have entered the skin care market with a flowable silicone polymer technology that cross-links upon activation to form a breathable, invisible film designed to contour and tighten the eye area, reducing the appearance of under-eye bags.

Armoring Enamel: New Paradigms for Combating Dental Decay

Feb 21, 2014Steven Isaacman, PhD, and Michael Isaacman, PhD, Nanometics LLC; and Kent Kirshenbaum, PhD, and Peter Smith, New York University

To protect enamel, new mechanisms in classic oral care continue to be uncovered, while modern advances mimic and enhance natural protective systems. New approaches to enamel repair include augmenting natural remineralization by creating reservoirs of ions and applying saliva biomimetics. Such technologies, described here, represent significant advances for repairing and protecting teeth noninvasively.

Lipsticks: How They Have Changed and Where They Are Going

Jan 15, 2014Rachel Mallon, Nunzio Ripamonti and Natasha Williams O’Hanlon, PhD; Oriflame Research and Development Ltd., Bray, Ireland

The composition of lipstick formulations and means of manufacturing and filling them have progressed significantly in the last 100 years. This article reviews the most notable developments in methods of production, innovations in both functional and active ingredients, and breakthroughs in processing. In addition, it explores what the future could hold for lipsticks.

Frontiers of Science Supports Cosmetic Research

Dec 18, 2013

On Dec. 12, 2013, at the Society of Cosmetic Chemists' (SCC) Annual Scientific Meeting & Technology Showcase, Rachel Grabenhofer, presented the Frontiers of Science Award to Joseph Schwarcz, PhD, from McGill University, on behalf of Cosmetics & Toiletries.

Peptidomimetics for Cosmetic Applications

Sep 1, 2013Steven Isaacman, PhD, Nanometics LLC; Michael Isaacman, University of California Santa Barbara; and Sung Bin Y. Shin, PhD, Avon Products

Peptidomimetics, or synthetic bioactive peptides, have been developed that mimic the biological functions of peptides and proteins but overcome many of these challenges and limitations. Further, due to their wide range of activity, synthetic feasibility and ease of handling, they have played a vital part in biological research. This column will discuss the potential application of these short chain oligomers in cosmetics and personal care.

Chinese Licorice Extract for Anti-aging, Antibacterial and Breath-freshening Effects

Aug 1, 2013Stefan Gafner, PhD, Tom’s of Maine

This article reviews in vitro studies that have found Chinese licorice extract to impart potent antibacterial and soothing properties, which make it an interesting candidate for applications in oral and personal care. Further, a clinical study is described in brief, assessing the ability of a supercritical CO2 extract from Chinese licorice to impart breath-freshening properties.

Caprylyl Glycol/Phenethyl Alcohol Blend for Alternative Preservation of Cosmetics

Aug 1, 2013Paola Ziosi, Stefano Manfredini, Alberta Vandini and Silvia Vertuani, University of Ferrara; and Massimo Fraternali, Akema Fine Chemicals

In recent years, the safety of traditional preservatives has been called into question. Therefore, there is a need for alternatives that are effective, safe and sustainable—and that are non-controversial. In response, the present work investigates a mixture of caprylyl glycol and phenethyl alcohol, which is shown to provide antimicrobial activity in various skin and hair care formulations.