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New in Formulating (page 53 of 66)
Dec 13, 2005 | 09:57 PM CST
Pathways for Skin Penetration
By: Nava Dayan, Lipo Chemicals Inc.
This paper reviews recent findings about three skin penetration pathways (including a “polar pathway”) and four types of penetration enhancers (enzymes, vesicular systems, ceramides and chemical enhancers).
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 13, 2005 | 09:53 PM CST
Busy Signals Explain Itch from Dry Skin
By: Gil Yosipovitch, MD, and Kelly L. Barham, MD
This review of literature suggests that crosstalk between the stratum corneum and nerve fibers in the epidermis is the process by which itch is transmitted to the central nervous system. A rationale is presented for using moisturizers to reduce itch.
Dec 13, 2005 | 09:47 PM CST
Effect of Seawater Salts on Inflammatory Skin Disease
By: Ivy Lee and H.I. Maibach
Use of mineral spa water and seawater has been and continues to be a common treatment modality for inflammatory skin conditions such as psoriasis, atopic dermatitis and irritant contact dermatitis.
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 | 03:57 PM CST
Properties of Surfactants: Emulsions
By: Anthony J. O'Lenick, Jr., Siltech LLC
The metastable nature of two insoluble materials is critical to understanding the nature and performance of emulsions. This metastability and the requirement that the emulsion be cosmetically appealing offer unique challenges to the formulator.
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.