Recent in Methods & Processes (page 7 of 15)
Dec 13, 2011
Researchers at Harvard's School of Engineering and Applied Sciences (SEAS) have discovered that stabilized emulsions may take months to years to reach equilibrium. This research has important implications for the manufacturing processes used in pharmaceuticals, cosmetics and foods, among other chemical industries.
Nov 2, 2011 | Anthony J. O'Lenick Jr., Siltech LLC
In this "Comparatively Speaking," Tony O'Lenick explains the difference between patents and trade secrets, both of which cosmetic chemists will encounter during their careers. This information will assist in determining whether a technology should be patented or maintained as a trade secret.
Oct 28, 2011 | Gerd Dahms, ICI Specialty Chemicals Group, Atlas Chemie
In cosmetic and pharmaceutical creams and lotions, fatty alcohols are well-known as viscosity modifiers. In addition, Schulmann and Cockbain found that the stability of oil-in-water emulsions was greatly increased by addition of cetyl alcohol.
Aug 1, 2011 | Nava Dayan, PhD, and Albert Babik, Lipo Chemicals Inc.; Tim Higgs; and Howard R. Lasker, PhD, University at Buffalo
This paper reviews the knowledge and nature of the harvest practices for the octocoral Pseudopterogorgia elisabethae. P. elisabethae extract has been used for nearly two decades in cosmetics and preparations for skin benefits, and a review of the harvest provides product developers with an interesting case study of the harvest of a marine resource.
Aug 1, 2011 | Peter Tsolis and L. Grotzinger
Led by column editor Peter Tsolis of The Estée Lauder Companies, this recently added column in the Cosmetics & Toiletries magazine lineup covers some of the more common formulation challenges and suggests solutions for novice formulators as well as seasoned experts.
Jul 19, 2011 | Th. Förster, B. Jackwerth, W. Pittermann, W. von Rybinski and M. Schmitt, Henkel KGaA
This work studied the influence of emulsion type and structure on the penetration of vitamins as cosmetic active ingredients. An emulsion of the w/o type and two different o/w emulsions were compared with an oil solution as a standard. A systematic in vitro study of penetration into the stratum corneum and the living skin was performed with the isolated perfused bovide udder skin model. The results substantiate the influence of emulsion type and stucture on the degree of penetration of water-soluble and oil-soluble vitamins into the skin.
May 2, 2011 | Bob Bornfriend, Alberto Culver
This article aims to help novice formulators understand issues that arise from the scale-up of their recipes, and to remind experienced formulators of some of the less common pitfalls. It also focuses on the unique demands of process development for global implementation at multiple sites, specifically pertaining to the scale-up tasks for process engineers at multinational companies.
May 2, 2011 | Kim S. Finnie, PhD; and Chris Barbé, PhD, Ceramisphere Pty., Ltd.
In this article, retinol encapsulated in organosilica microparticles (12–14% w/w) having an average particle size of 0.3 micron are shown in a 40-day test period to exhibit enhanced stability to oxidation when compared with similar commercial stabilized retinol products.
May 2, 2011
Plant Advanced Technologies has developed a process to "milk" plants in order to obtain active and natural extracts without damaging the plants.
Apr 26, 2011 | Anthony J. O'Lenick Jr., Siltech LLC
This edition of "Comparatively Speaking" by industry expert Tony O'Lenick compares a product's density with its specific gravity, which are important measurements for formulators to understand especially when considering product specifications.
Mar 23, 2011
Researchers at Ohio State University have invented a single lens that enables microscopic objects to be viewed from nine angles at once to create a 3-D image.
Dec 29, 2010
Ecover Belgium NV has introduced an ecological, all-purpose cleaner suitable for cleaning the appliances and machinery used to manufacture food and cosmetics.