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New in Function (page 158 of 170)
Dec 13, 2005 | 11:20 PM CST
By: T. Tadros, Consultant; E. Vandekerckhove, A. …
Nanoemulsions prepared and stabilized with hydrophobically modified inulin as the surfactant require much less surfactant than nanoemulsions prepared and stabilized using conventional surfactants such as alcohol ethoxylate because they have a reduced Ostwald ripening rate.
Dec 13, 2005 | 11:13 PM CST
By: Ken Klein, Cosmetech Laboratories
Whenever we are asked to formulate an emulsion, we think of and usually add a humectant. A humectant being defined as “a substance that promotes retention of moisture.” It is derived from Latin “hu-mecta-ns, hu-mecta-nt, present participle of hu-mecta-re, to moisten, from hu-mectus, moist, from hu-me-re, to be moist.” But these versatile materials deserve our respect. They have functions that go far beyond this simplistic definition!
Dec 13, 2005 | 11:10 PM CST
By: Pascale Rossi, Uniqema, Applied Research and T…
The solvent dimethyl isosorbide improves the delivery of hydrophilic actives, enabling it to enhance the color intensity and color uniformity of self-tanning formulations in tests reported here.
Dec 13, 2005 | 11:08 PM CST
By: Patrick Stolz and Barbara Obermayer, Pentapha…
Biotechnology methods are described for manufacturing of contaminant-free microalgae with potential skin care benefi ts, such as collagen synthesis and reduction of intracellular oxidative stress.
Dec 13, 2005 | 11:06 PM CST
By: Barbara E Brockway, PhD, Optima Chemicals Ltd.…
Sugar can be useful to formulate preservative-free products and to maintain the stability of formulations during freeze-thaw cycles. Formulators are beginning to recognize sugar as an active ingredient whose derivatives offer new uses in the personal care industry.
Dec 13, 2005 | 11:05 PM CST
By: Guido Gayko, PhD, Jürgen Warnecke, MD and Clau…
Coal tar is an effective antidandruff active, but it contains compounds that are proven carcinogens. In this article sodium shale oil sulfonate is shown in preliminary results for the first time to have antidandruff efficacy equivalent to that of coal tar with none of coal tar’s toxic potential.
Dec 13, 2005 | 11:03 PM CST
By: Nancy Clements, International Specialty Produc…
This article surveys a variety of tests used to evaluate polyimide-1, a new hair styling resin, by comparing its performance against that of PVP in gel and mousse formulations.
Dec 13, 2005 | 11:01 PM CST
By: Philippe Maillan, Anna Gripp, Fintan Sit, Rola…
The data presented shows polysilicone-15 demonstrates the ability to perform as a UV fi lter for hair protection and decreases the combing force necessary after irradiation to sample hair tresses in addition to enhancing the shine attribute of a formulated product.
Dec 13, 2005 | 11:00 PM CST
By: Anthony J. O'Lenick, Jr., Siltech LLC
This study of the compatibility, foam properties, and substantivity of quats with sodium lauryl sulfate (SLS) and sodium laureth-3-sulfate (SLES) helps to explain the function of conditioners.
Dec 13, 2005 | 10:49 PM CST
By: Luigi Rigano, L. Rigano Laboratories; Elisabet…
Tests described here show that chelating agents can stabilize solutions of zinc coceth sulfate, enabling this multifunctional active to provide mild skin cleansing, antidandruff, deodorant and skin renewal benefits. The role of zinc species deposition onto skin has also been investigated.