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New in Skin Care (page 6 of 24)
Oct 01, 2012 | 02:06 PM CDT
By: Peter Tsolis, The Estée Lauder Companies; and …
Many anhydrous products are mixtures of oils, esters, fatty alcohols, waxes, preservatives, fragrances and various pigments. Combining these materials is a complex undertaking, and varying the concentration even slightly changes the dynamics and aesthetics of the final product; in the worst cases, it causes instability.
Sep 04, 2012 | 11:31 AM CDT
By: Jochen Klock, PhD, and Volker Rosenberger, PhD…
Saccharide isomerate, designed to closely resemble a carbohydrate complex found in human stratum corneum, is shown here to provide up to 72 hr of deep hydration to skin and, for the first time, rinse-off soothing to the scalp. Its unique binding mechanism to skin and scalp create new opportunities for leave-on and rinse-off products.
Aug 15, 2012 | 01:13 PM CDT
By: Monique Adamy, Anne-France Leron, Charles Phan…
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.
Aug 15, 2012 | 01:07 PM CDT
By: Steven Abbott, PhD, Steven Abbott TCNF Ltd. an…
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.
Aug 15, 2012 | 12:36 PM CDT
By: Mike Fevola, Johnson & Johnson
Alkyl polyglucoside (APG) surfactants continue to be a popular choice of formulators seeking to improve the sustainability of cleansing products for personal care, hard surface cleaning, dishwashing, laundry, and industrial/institutional applications.
Jul 03, 2012 | 02:51 PM CDT
By: Stewart J. Lebrun, Lebrun Labs, CA USA
The testing of personal care products for ocular irritancy ensures their safety, proper labeling and consumer satisfaction. In relation, there is a current demand for animal-alternative tests. Thus, described here is a method using synthetic tissue to test for mild, moderate and severe ocular irritation, including data validating this method as an effective means to screen products.
Jul 03, 2012 | 02:46 PM CDT
From Elastin to Elastic Fibers, Part I: The In vitro Effects of a Natural Dipeptide on the Biological Cascade
By: Philippe Mondon and Ada Andre - Sederma, Franc…
The peptide N-Acetyl-Tyr-Arg-Hexadecylester (NATAH) was found to stimulate the synthesis of tropoelastin in cultured human dermal fibroblasts as well as augment the activity of all important actors in the assembly of elastic fibers, including Fibrillin 1, Fibulin 5, Decorin, LOX and Transglutaminase, among others. This is shown here both in monolayer cell cultures and in a 3D skin model.
Jul 03, 2012 | 02:39 PM CDT
By: Luigi Rigano, PhD, Institute of Skin and Produ…
Many dermatological diseases such as athlete’s foot occur because the feet spend long spans of time in a warm, dark and humid environment. While there are several foot diseases related to diabetes, this column will focus on the development of foot care formulae designed for cosmetic treatments.
Jul 03, 2012 | 02:23 PM CDT
A Dermatological View—Exploring Potential Differences in Percutaneous Penetration and Barrier Function Between Individuals of Different Ethnicity or Skin Color
By: Elodie Metral and Howard I. Maibach, MD, Unive…
The current understanding of percutaneous penetration and parameters that can influence it remains a sub judice area. Ethnicity or pigmentation, for instance, can be implied in percutaneous absorption for which several studies, described here, have been conducted to clarify their roles.
Jun 04, 2012 | 03:24 PM CDT
By: R. Gopaul; D.G. Kern; H.E. Knaggs, PhD; and J.…
A blend of Narcissus tazetta bulb and Schizandra chinensis fruit extracts was developed for anti-aging benefits and tested for efficacy on a human skin equivalent. Results indicate it regulates the functions of youth gene clusters by increasing the activities found in younger skin and reducing the activities found in aging skin specific to structure, hydration, cellular proliferation and pigmentation.