Recent in Chemistry (page 5 of 9)
May 1, 2013
Although nanomaterials have been used in cosmetics for some time, consumers believe they may constitute a health risk due to their possible penetration into the skin. The present article evaluates the benefits as well as the skin penetration of nanoparticles used in cosmetics.
Nov 1, 2012 | Michael J. Fevola, PhD, Johnson & Johnson
SorbH and KSorb have become increasingly popular options for cosmetic preservatives due to their worldwide status as Generally Recognized As Safe (GRAS) food ingredients and their long and successful use history.
Sep 25, 2012 | Anthony J. O'Lenick Jr., Siltech LLC; and James Ashenhurst, PhD,
Tony O’Lenick asks organic chemistry expert and founder of website Master Organic Chemistry James Ashenhurst, PhD, to explain the eight types of arrow symbols.
Sep 4, 2012 | Edwin B. Faulkner, Sun Chemical Corp.
Specialty pigments bring unique effects to personal care products, thus they are an important class of color additives for the decorative cosmetic industry. Presented here is a review of their properties and benefits, including mechanisms of refraction and reflection, as well as regulatory considerations.
Sep 4, 2012 | Michael J. Fevola, PhD, Johnson & Johnson
Mica is an inorganic material found in a wide variety of cosmetic and personal care products. Its use has been reported in more than 7,100 products, making it one of the most important mineral ingredients used in cosmetics.
Jul 10, 2012 | Trefor Evans
In the midst of his examination of the adsorption properties of hair, Trefor Evans addresses water content and its manipulation with regard to moisturization in the following excerpt from Alluredbooks’ Practical Modern Hair Science.
Jun 13, 2012
New findings regarding the formation of fullerenes, aka "buckyballs," were recently published in the journal Nature Communications, suggesting that smaller cages grow into larger ones.
Jun 6, 2012
In a recent study, researchers found that an enzyme from the dandruff-causing pathogen Malassezia globosa provides a potential new anti-dandruff target.
Apr 24, 2012 | Anthony J. O'Lenick Jr., Siltech LLC
In this installment of "Comparatively Speaking," industry expert Tony O'Lenick describes the difference between solubility and extraction, and how various extraction techniques can be used to isolate desired cosmetic actives.
Apr 10, 2012 | Anthony J. O'Lenick Jr., Siltech LLC
Here, industry expert Tony O'Lenick explains the difference between solubility and partition coefficient, as the understanding can lead to a better delivery of a formulation's materials.
Mar 30, 2012 | Xiao Wu, PhD, College of Pharmacy, University of Michigan, Ann Arbor, MI, USA
As the commercial applications of nanotechnology have increased in the past decade, a number of nanoparticles are now being used in cosmetic products with optimized sensory attributes and consumer-perceivable benefits. This article reviews various forms of nanoparticles used in the cosmetic industry, discussing their properties, interactions with the skin and potential health effects.
Oct 28, 2011 | James Lambert, PhD NuSil Technology LLC
The use of silicones in personal care products continues to expand because of the unique performance attributes they provide and their well-established record of safety. As a result, progressively larger volumes of silicones are being released to the environment, and interest in their life cycle has increased. The present article summarizes relevant fundamental chemical and physical properties of silicones and how these relate to material performance, safety and environmental fate.