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Jul 25, 2005 | 01:07 PM CDT
By: E.K. Boisits and S.R. Schwartz, International …
Knowledge of neonatal skin is essential to formulate safe and effective products for infant skin. Once the safety profile of a formulation has been established, performance testing is required to assess the effectiveness of the material relative to its intended purpose.
Jul 25, 2005 | 01:05 PM CDT
By: A. Schlosser and L. Hassenzahl, Wacker Chemica…
A new thermoplastic silicone elastomer (TPSE) is shown here to improve scratch resistance, chip-off, feel, smoothness, gloss, and color in a nail polish formulation when compared with a formulation without TPSE. The new ingredient proves to be an interesting technology for optimizing nail polishes.
Jul 25, 2005 | 01:01 PM CDT
By: R.Y. Lochhead, The University of Southern Miss…
This article surveys patents and technical literature, principally from the past 10 years, to report advances in polymers used for dyeing hair, color retention,and hair lightening. Associative thickeners (anionic, cationic, amphoteric, nonionic, HASE, HEUR), nonassociative thickeners, and silicones are discussed.
Jul 25, 2005 | 12:56 PM CDT
By: Anthony J. O'Lenick, Jr., Siltech LLC
In formulation, the key attributes of surfactants are conditioning, wetting, emulsification, and detergency. This article describes the features of surfactants that provide wetting properties in aqueous systems. Specifically, the properties of interest include surface tension reduction, HLB, molecular weight, branching, and level of ethoxylation. The choice of the best wetting agent depends upon chemical structure and the formulation.
Jan 07, 2004 | 04:39 PM CST
By: Allen H. Rau, Phyzz Inc.
Effervescent shower tablets, floating/foaming fizz and blooming bath oils arouse bathers’ olfactory, visual, tactile and auditory senses to new levels. Formulators and developers have novel options for creating new product concepts.
Jan 07, 2004 | 04:11 PM CST
By: Berislav Markovic, Donna Laura and Mark Rerek,…
A new laboratory in vitro method for the measurement of sunscreen water resistance uses spectrophotometric analysis of a model skin substitute before and after 80-minute immersion. It gives good correlation with the FDA’s 80-minute immersion SPF results (very water resistant). The method is especially good for screening new formulations or water-resistant technologies.
Jan 07, 2004 | 03:46 PM CST
By: Nick Morante, Color Science Laboratory, Estee …
With a spectrophotometer and computerized color measurement software, the cosmetic chemist can do both basic color quality control and color formulation and correction easily in the lab.
Dec 31, 2003 | 06:19 PM CST
By: Sidney B. Hornby, Mar-Tech Contract Services I…
Cyclic fatigue testing simulated stresses experienced by hair fibers from repeated grooming and styling. Researchers used the Weibull parameter of characteristic life to assess damage. Survival probability graphs showed conditioner use helped damaged hair.
May 06, 2003 | 02:00 AM CDT
By: Thomas Dietz, Goldschmidt AG
This article describes a new polyether-modfied polidimethylsiloxane that has shown skin moisturization and skin smoothing capability in objective and sensory panel tests.
May 06, 2003 | 02:00 AM CDT
By: He, C ;Vagts, A
Several silicone materials can provide formulating solutions for bath and shower products designed for tropical areas in Southeast Asia.