Recent in Chemistry (page 1 of 6)
Jul 8, 2016
To enhance the functionality and stability of topical high molecular weight hyaluronic acid (HA), derivatives were developed using divinyl sulfone as a cross-linker. The cross-linked HA gels formed were assessed as described here in terms of water-binding capacity, delivery of actives and stability against heat, free radicals, other chemicals and pH changes, and compared with non-cross-linked native HA.
Apr 15, 2016
There is growing demand for algal fatty acids in cosmetics. These lipids have three main functions: cleansing, protecting and maintaining skin. As this brief review explains,fatty acid content varies between algae, so the careful selection of species and control over growth conditions are necessary. Future research is suggested to fill current gaps.
Jan 25, 2016
In a recent exclusive interview with C&T, Kevin Gallagher, Croda’s retiring president of personal care/actives, gave a little insight on what he sees coming down the not-to-distant road for the cosmetics and personal care industry. See what he discussed with C&T’s Rachel Grabenhofer.
Jan 18, 2016
In a recent exclusive interview with C&T, Kevin Gallagher, Croda’s retiring president of personal care/actives, talked about what he’ll miss most in retirement.
Dec 31, 2015
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
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
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.
Aug 25, 2015
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.
Jun 26, 2015
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
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
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
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.