Recent in Chemistry (page 2 of 10)
Dec 31, 2015 | Rachel Grabenhofer
In a recent exclusive interview with C&T, Kevin Gallagher, Croda’s retiring president of personal care/actives, spoke about some of the significant accomplishments of his long career with Croda. See what he talked about with C&T’s Rachel Grabenhofer.
Aug 26, 2015 | Thomas Welss, Claudia Hundeiker, Nicole Duschek, Wilfried Howorka, Jennifer Evening and Thomas Förster, Henkel Beauty Care, Düsseldorf, Germany
This article evaluates the ability of a toothpaste formulation containing calcium, phosphate and a film-building carboxymethyl cellulose to repair and refill damaged enamel. Micro-hardness and elasticity were quantified by nano-indentation, and surface roughness by profilometry. Scanning electron microscopy was employed for qualitative analysis, and profilometry, again, for the refilling of micro damage.
Aug 25, 2015 | Rachel Grabenhofer
Ingredient safety and skin reactions relate not only to companies producing the pigments and inks used for tattooing, but also skin care product manufacturers in general—after all, I apply sunscreen and moisturizer to my tattooed skin.
Aug 25, 2015 | Rachel Grabenhofer
According to Andreas Luch, M.D., senior author in a study published in The Lancet, almost everybody these days has a tattoo, and nobody is talking about the side effects of ink deposits. ... There simply is not enough data to reach a conclusion of their safety.
Jun 26, 2015 | Ann-Charlotte Andersson and Jari Alander, AAK Sweden AB, Karlshamn, Sweden
The anti-inflammatory and protease-inhibiting activity of triterpene esters is reported in the literature and reviewed here. These findings indicate the material’s potential for reducing skin stress induced by environmental factors. In consideration, studies were conducted to assess the various effects of shea butter triterpene esters on skin inflammation, barrier thickness and collagen production.
Jun 26, 2015 | Giorgio Dell’Acqua, Ph.D, Dell’Acqua Consulting, Jersey City, NJ USA
In recent years, interest in sourcing plant roots as active ingredients for cosmetic use has grown tremendously. Roots such as maca and suma are rich in secondary metabolites and, as described here, can have specific actions on skin to increase its vitality and response to environmental stresses.
Apr 22, 2015 | S. Nafisi, PhD and H. I. Maibach, MD, University of California, San Francisco
Nanotechnology is a rapidly expanding area of research for developing science-based solutions for innovative therapeutics. Recently, silica nanoparticles (SNPs) have emerged in cosmetics and dermal preparations, offering revolutionary application by controlling the sustained release of cosmetic ingredients and/or drugs and enhanced skin penetration.
Feb 4, 2015 | Rachel Grabenhofer
New approaches to hair cleansing range from dry powders and sprays, to creamy cleansers that skip shampooing altogether. In fact, according to Mintel's NPD Database, an increasing number of consumers favor dry shampoo. Carmen Castillo Bucci, of L'Or<é>al USA, will discuss these new approaches to hair cleansing during the Cosmetics & Toiletries Summit.
Jan 29, 2015 | Robert Lochhead, PhD, University of Southern Mississippi; and Margaret Lochhead, PhD
It has been two decades since Revlon revolutionized the color cosmetic market by debuting transfer-resistant lipstick. Innovations in transfer resistance and long wear makeup have continued apace, and it certainly appears that advances in this field will continue for the foreseeable future. This article reviews the literature to show the evolution of chemistries and concepts in this prominent market.
Nov 26, 2014 | Rachel Grabenhofer
The success of BB creams is undeniable, and it has launched an alphabet-heavy trend in both skin and hair care. However, what challenge does this pose for formulators? During the C&T Summit, Prithwiraj Maitra, PhD, will discuss the challenges of multifunctional products and their components from a material scientist's perspective.
Nov 18, 2014 | Rachel Grabenhofer
According to research from Diagonal Reports, hair straightening has stirred up today's beauty marketplace. Further, demand for hair control is growing exponentially. In response, Peter Landa of TRI-K will revisit the "knowns" and consider the "unknowns" of hair structure and control technologies during the 2015 Cosmetics & Toiletries Summit.
Sep 17, 2014 | Giovanni Pantini, PhD, Studio 24, Milan, Italy
Problems with skin protectants include unsatisfactory performance, poor prospects for improvement, and the lack of methods for evaluation. Such problems are introduced here, while insights in the area of perfluoropolyethers and concepts to push skin protectants to new efficacies will be discussed in follow-up articles.