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Dec 13, 2005 | 10:02 PM CST
Examining an Exfoliation-Promoting Enzyme for Cosmetic Applications
By: Toshihiko Seki, Shiseido Co, Ltd.; Isao Yajima…
To investigate the biological function of proteases on desquamation and their possible cosmetic applications, the authors evaluate the effects of degrading and exfoliating on human SC sheets of chemical cross-linking subtilisin (CL-SB), a highmolecular-weight enzyme derived from serine protease of Bacillus licheniformis
Dec 13, 2005 | 09:55 PM CST
Neonatal Skin: Structure and Function
By: Edward K. Boisits, PhD, International Research…
Within the embryonic/fetal development program, skin is of major importance. Much of the activity in skin development is centered around formation of the epidermis, which ultimately generates the stratum corneum. The present article touches the surface of the structure and function of neonatal skin.
Dec 01, 2005 | 04:01 PM CST
Formulators Forum - Sunscreens: Current Issues and Controversies
By: Ken Klein
Like you, I have attended an astounding number of scientific conferences and have read seemingly unending technical papers dealing with what most of the time are topics of interest to cosmetic chemists. While we always can learn from these meetings and articles, it seems to me that there is a real lack of technical controversy. We sit and quietly accept what is heard as gospel. While we may not agree, we nevertheless just sit back and don’t ask the hard questions. Does this make sense? Was the test design reasonable? Did they use the proper controls?
Dec 01, 2005 | 03:55 PM CST
Protecting the Skin from Environmental Stresses with an Exopolysaccharide Formulation
By: A. Thibodeau, Atrium Biotechnologies
A polysaccharide with a repetitive unit of 11 glycosidic residues has been found to exert properties such as skin repair, restructuring and protection against inflammatory processes, in a described formulation.
Dec 01, 2005 | 03:54 PM CST
Emollients with Activity for Sun Care Applications
By: J. Alander, A.C. Andersson, J. Tabor and C. Li…
A process of partial hydrogenation followed by fractionation will stabilize canola oil and maximize its content of tocopherols, yielding a stable emollient oil with improved sun care and skin care benefits.
Dec 01, 2005 | 03:52 PM CST
Protecting the Genome of Skin Cells from Oxidative Stress and Photoaging
By: L. Danoux, C. Jeanmaire, V. Bardey, G. Périé, …
According to a concept proposed here, protection of nuclear DNA and mitochondrial DNA against UVB and UVA radiation can break the vicious cycle responsible for skin photoaging.
Nov 01, 2005 | 04:14 PM CST
Antichaotropic Salts for Stabilizing Cysteine
By: Albert Shansky, PhD, Albert Shansky Consultant…
Antichaotropic salts stabilize cysteine by lowering the water activity in an aqueous solution. This technique can be used to extend the shelf life of cysteine permanent wave solutions.
Nov 01, 2005 | 02:59 PM CST
Recent Polymer Technologies for Hair Care
By: Bernice Ridley and Colleen M. Rocafort, Ciba S…
More than 20 polymers from seven companies are reviewed in this survey of recent polymer technologies for hair care. A variety of new functions and multifunctionalities are seen in these products launched within the past two years.
Nov 01, 2005 | 02:52 PM CST
Torsional Behavior of Human Hair by Single Fiber Torsion Pendulum Method
By: Y. K. Kamath, TRI
Torsional properties are described by the author as a method to distinguish between the surface and the bulk effects of actives in hair formulations.
Nov 01, 2005 | 02:44 PM CST
Inside the Hair: An Advanced Hair Biology Model
By: Randy Schueller and Perry Romanowski, Alberto-…
In this survey from the literature, various writers describe a model of the inside of a hair strand, showing a multilamellar structure of the cuticle cells, a multifibril structure of the cortex, and a variety of lipids that are thought to be major contributors to the hair’s physical properties. What exactly is hair? Simply put, the answer is that hair is protein. But this simple answer does not even begin to explain the complexity and sophistication of the hair fiber.