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May 06, 2003 | 02:00 AM CDT
Oxidative Stability of Botanical Oils in Color Cosmetics
By: James H. Brown, Robert Kleiman and Melanie Cum…
Some cosmetic emollients are particularly susceptible to oxidative degradation when used in the presence of metal oxides. This study examines the results of studies to identify emollients that are less susceptible.
May 06, 2003 | 02:00 AM CDT
Octadecenedioic Acid for a More Even Skin Tone
By: Johann W. Wiechers, PhD, Frans J. Groenhof, Vi…
Octadecenedioic acid, a new nature-derived ingredient made via biofermentation from oleic acid, has demonstrated efficacy in a variety of applications, including skin tonight, dandruff reduction and deodorancy.
May 06, 2003 | 02:00 AM CDT
Formulating Conditioning Shampoos
By: Robert Lochhead, The University of Southern Mi…
Conditioning shampoos came into being when in order to replace hair body that had been lost by frequent shampooing and conditioning, formulators sought to introduce ingredients that would be deposited on the hair during the shampooing process. This article addresses the basics and the most recent developments in formulating conditioning shampoos.
May 06, 2003 | 02:00 AM CDT
Green Tea and Skin Photoprotection
By: Santosh Katiyar and Craig Elmets, Department o…
Chronic exposure of solar ultraviolet (UV) light to human skin is responsible for various skin disorders. Treatment with polyphenolic compounds from green tea has been shown to prevent UV light-induced skin photodamage in laboratory animals and human skin
May 06, 2003 | 02:00 AM CDT
Whitening Complex with Waltheria indica Extract and Ferulic Acid
By: Liye Maeyama, Cognis Japan
Waltheria indica extract, ferulic acid and certain other ingredients act synergistically in a whitening complex that inhibits tyrosinase and provides mild exfoliation.
May 06, 2003 | 02:00 AM CDT
Surfactants and Interfacial Phenomena in Cosmetics and Detergency
By: P. Somasundaran and Lei Zhang, NSF Industrial …
An understanding of the behavior of surfactants and their interfacial phenomena in cosmetics processes will help formulators design better cosmetics.
May 06, 2003 | 02:00 AM CDT
Sunscreen Formulation and Testing
By: Michael Caswell, PhD, C.B. Fleet and Central V…
The author reviews SPF testing methods and sunscreen components (actives, active solvents, water-resistance agents and emulsifiers) that assist the formulator in the art and science of sunscreen formulation.
May 06, 2003 | 02:00 AM CDT
Correlating Porosity and Tensile Strength of Chemically Modified Hair
By: Ali N. Syed and hasan Ayoub, Avlon Industries …
This study validates the porosity method against the widely accepted method of tensile strength for determining the hair damage imparted to hair due to cosmetic treatments.
May 06, 2003 | 02:00 AM CDT
Polyquaternium-55: A New Force in Styling Products
By: J Dallal, ISP
The author describes a hair styling polymer that has been shown to protect the hair during the stages of styling and provide long-lasting and resilient styling benefits.
May 06, 2003 | 02:00 AM CDT
Transition Metal-Induced Oxidation: Implications for Skin Care Products
By: Ratan K. Chaudhuri and Germain Puccetti, Rona/…
Transition metals in the skin affect the skin's pro-oxidation response to external stresses, well-known antioxidants and common chelating agents. The chemistry of transition metal-induced oxidation has implications for the development of skin care product