Recent in Formulating Aids (page 3 of 4)
Jul 15, 2013
In the present article, microchannel emulsification is explored as a process method that precisely adds a dispersed phase into a continuous phase through an engineered dispersion plate. This approach is shown to produce emulsions with smaller droplets having tighter size distributions than conventional means, which leads to stable products with the limited need, if any, for surfactants.
Jul 15, 2013
this issue of Cosmetics & Toiletries magazine features articles that suggest how the right tweaks to some fundamental variables can improve formulations. O’Lenick and Lott, for instance, discuss how solvents can impact SPF values and describe a new ester to improve sunscreen efficacy
Jul 3, 2013
Polyoxyethylene (20) sorbitan monolaurate (INCI: Polysorbate 20), is a ubiquitous nonionic surfactant employed in the formulation of countless cosmetic and personal care products.
Jun 25, 2013
Silicone elastomers for personal care have evolved from cross-linked silicone polymers in silicone fluid carriers, to materials with broader organic compatibility in organic solvents. Recently, hydrophilic properties have been added, which are shown here to enable the incorporation of high levels of water, polar solvents and actives while maintaining organic compatibility and unique sensory characteristics.
May 31, 2013
Alpha-pinene, typically derived from pine trees, is also a by-product of the paper manufacturing process. The material is a source of low-toxic and naturally based isobornyl ethers, from which a new hydrotrope, dipropylene glycol isobornyl ether, was developed.The present study examines the unique dispersion and solubility properties of this material, among other benefits, and its application in cosmetics.
May 30, 2013
This study examines the photostability of retinol and retinyl palmitate, finding they break down rapidly when exposed to UV radiation in the 290–400 nm range. This severely reduces their concentrations in finished formulations. However, when combined with ethylhexyl methoxycrylene, these retinoids are shown to be protected against photodegradation, thus preserving their concentrations both during the manufacturing process and following application to the skin.
May 29, 2013
Acrylate-based ingredients have been modified over the past decades, and their benefits are increasingly evident in many industries outside of cosmetics, such as paints, coatings, inks, textiles, etc.
May 12, 2013
Understanding the process variables that occur during emulsion manufacturing can assist formulators in preventing production inconsistencies as well as selecting the most effective surfactant blend for a given purpose. This in turn reduces the amount of surfactant required without affecting emulsion quality or stability, thus saving resources and even improving product quality, as the present article describes.
May 11, 2013
Polymer use began in the 1800s with cellulose derivatives, the vulcanization of rubber, and styrene synthesis; but in reality, it started more than four million years ago with the formation of DNA and proteins. Polymers are a diverse class of chemistry. By definition, they are large molecules made up of chains or rings of linked monomer units—simple reactive building blocks. Smaller molecules or monomers are combined to form polymers that possess a characteristic chain structure of multiple repeating units that can be related or different.
Characterizing Nanoemulsions Prepared by High Pressure Homogenization Under Various Emulsifying Conditions
Apr 18, 2013
The present study examines formulations prepared using similar oil fractions and differing emulsifier systems and process parameters to determine why their behaviors differ. Results showed that ethoxylated emulsifier systems were the most stable, and that beyond a certain number of cycles, high pressure homogenization did not significantly improve the quality of the product.
Apr 2, 2013
Gattefossé is focusing on red fruit for its launches at in-cosmetics 2013. The company will add cherry and cranberry waters to its Original Extracts line of vegetal waters, which now complies with the COSMOS standard.
Mar 15, 2013 | Tiffany N. Oliphant and Douglas W. Gilmore, Floratech; and Robert A. Harper, PhD, Harper and Associates
Hydrolyzed jojoba esters were incorporated into formulas including a lotion, hand sanitizer and nonwoven wipes. Small, well-controlled clinical studies were then conducted to compare the formulas with or without glycerin. Results show the esters can potentiate the skin moisturizing effect of glycerin under varying formula conditions. A mechanism of action also is discussed.