Recent in Formulating Aids (page 3 of 7)
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Troubleshooting Microemulsion Systems
Oct 24, 2013 | Peter Tsolis, The Estee Lauder Companies; and Christopher Heisig, PhD, Steris Corp.
Microemulsions have long assisted the pharmaceutical industry in delivering efficacious levels of an active ingredient to the skin by enhancing the active’s bioavailability, versus traditional solutions and dispersions.
PIT Versus PIF for the Rational Formulation of Emulsions
Sep 23, 2013 | Steven Abbott, PhD, Steven Abbott TCNF Ltd. and University of Leeds
This article deliberately pushes the boundaries for cosmetics scientists, showing how the much-used phase inversion temperature (PIT) technique is a limiting special case of a more versatile, rational approach to surfactant optimization: HLD-NAC. This simple way of understanding the basic interactions within emulsion formulations can be generalized to create totally new ways of formulating stable emulsions.
Polyacrylate-33 for Thickening and Suspending in Low Surfactant Cleansers
Sep 20, 2013 | Monique Adamy, Anne-France Leron, Charles Phan and Pascal Hervé, Rhodia
Described herein is a hydrophobically-modified acrylic copolymer, polyacrylate-33, which is designed for low-to-medium surfactant-containing cleansers. The ingredient is shown to display high thickening efficiency and good suspension properties and shear-thinning rheology in sulfate-based and sulfate-free chassis. Further, it enables transparent formulations in the presence of salt with improved foaming and sensorial properties.
Hyperbranched Polyalphaolefins Enhance Anhydrous Stick Formulations
Aug 2, 2013 | Florence Nicholas and Jeff Brooks, New Phase Technologies
Hyperbranched polyalphaolefins offer distinctive functional and aesthetic properties due to their branch-on-branch configuration. In anhydrous stick formulations containing polyethylene or other crystalline waxes, the addition of hyperbranched polyalphaolefins is shown in this article to lower pour points by as much as 10C, increase gloss, modify structure and improve formula stability.
Symrise Launches Multifunctional Stabilizer
Jul 30, 2013
Symrise has introduced a multifunctional stabilizer for cosmetics that also exhibits antioxidant, soothing and preservative boosting functions.
Feasibility Study of Sago Starch for Perfumed and Cooling Body Powders
Jul 25, 2013 | Prapaporn Boonme, Mattha Aporn, Sirowan Khwankaew, Wiwat Pichayakorn, Pilaiwan Prapruti and Somsak Boromthanarat, Prince of Songkla University
In the present article, sago starch-containing perfumed and cooling body powders are formulated and their physicochemical properties for potential skin irritation are examined. The results indicate that sago starch could potentially be used as the main component in body powders.
Deciphering Chelating Agent Formulas
Jul 17, 2013 | Eric S. Abrutyn, TPC2 Advisors Ltd.
The mechanism for chelation, described as a chelate complex, is based on multiple bonding (polydentate ligand) around a single central atom.
Microchannel Processing: A Novel Approach to Making Emulsions
Jul 15, 2013 | Mark Grace, Velocys Inc. and Larry Plonsker, Chemical Network Associates
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.
Simple Solutions
Jul 15, 2013 | Rachel Grabenhofer, Cosmetics & Toiletries magazine
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
Polysorbate 20
Jul 3, 2013 | Mike Fevola, Johnson & Johnson
Polyoxyethylene (20) sorbitan monolaurate (INCI: Polysorbate 20), is a ubiquitous nonionic surfactant employed in the formulation of countless cosmetic and personal care products.
A Hydrophilic Silicone Elastomer for Broader Formulating Flexibility
Jun 25, 2013 | Isabelle Van Reeth and Xinyan R. Bao, Dow Corning (China) Holding Co., Ltd.; Kelli Dib and Roxanne Haller, Dow Corning Corp.
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.
Benefits of Borneo Camphor-derived Hydrotropes for 'Natural' Formulations
May 31, 2013 | Gloria Pagnutti; Marco Riva, MD; and Luigi Rigano, PhD, Rigano Industrial Consulting and Research; and Robert Gick, CABB GmbH
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.