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Skin Care Forum Issue 46
Cover Picture
Simplified, schematic representation of an allergic inflammation of the skin
Link: http://www.scf-online.com/english/46_e/title46_e.html
This article describes the interaction between the various players involved in the development of skin inflammation, focussing on the role of Langerhans cells, keratinocytes, cytokines, T-cells, and lymph nodes.
Newsletter
Wet dryer sheets - For textiles that look and feel good
Author: Markus Doerr
Link: http://www.scf-online.com/english/46_e/WetDryerSheets46_e.html
The article treats a new concept for the effective transfer of substances to fabrics. The special technology of "Wet dryer sheets" makes clothes pleasant to wear, protects them from wear and tear, improves color maintenance and increases moisture uptake. They may contain skin care ingredients that provide protection for sensitive skin, thus enabling manufacturers to meet specific consumer needs.
Skin Care Forum Issue 45
Cover Picture
Skin irritation
Link: http://www.scf-online.com/english/45_e/title45_e.htm
Our illustration shows persisting skin irritation in its final stage. A distinct desquamation and thickening of the horny layer are recognized on the skin's surface. Intercellular edema have developed in the epidermal layer. Click on the link above to read the full article.
Newsletter
Perception, measurement and visualization of cosmetic effects
Authors: Torsten Clarius, Olga Freis, Dominique Gauché, Marie-Danielle Vazquez-Duchêne, Marie-France Zambaux, Gilles Pauly, Andreas Rathjens
Link: http://www.scf-online.com/english/45_e/visualization45_e.htm
Modern visualization techniques not only help improve quantitative evaluations of test results but also lead to presentations which are more convincing for the consumer. Laboratoires Sérobiologiques are steadily increasing this competence to document the efficacy of skin and body care products. Three-dimensional animations of detailed dermal structures of individual cells are suited to present scientific topics in an easy way and may contribute to the cosmetic manufacturer's credibility.
Guest article
Questions about Skin Care - Frequently asked consumers’ questions
Author: Michaela Arens-Corell
Link: http://www.scf-online.com/english/45_e/questions45_e.htm
In this article, frequently occurring questions about skin care are summarized. The need and interest of consumers to obtain in-depth information about skin care seems to be unlimited. In spite of the multitude of magazines featuring cosmetic articles and special reports in newspapers, on the radio and TV, plus the great variety of sources to be found on the Internet there is still an astonishingly large requirement for even more information. Click on the link above to read the full article.
Newsletter
Determination of the substantivity of emollients to human hair
Authors: Hans-Martin Haake, Hélène Lagrené, Angela Brands, Wolf Eisfeld, David Melchior
Link: http://www.scf-online.com/english/45_e/substantivity45_e.htm
This article focuses on the determination of silicones and hydrogenated didecenes deposited on human hair from shampoo applications. For silicones, ICP-OES (induced coupled plasma optical emission spectroscopy) of extracts and X-ray fluorescence analysis of hair strands without any further sample preparation were applied. Three shampoos from the European and Asian markets were investigated at repeated shampoo applications followed by the determination of the removability with sodium laureth sulfate. Hydrogenated didecenes were quantified by GC-MS of extracts. A transparent shampoo containing 1.8% of hydrogenated didecenes delivered via a nanoemulsion was examined in the same way as the commercial shampoos. The substantivity data were compared with performance data from combability determination and hair volume measurements. Good correlations of analytical data and performance profiles were obtained.
Skin Care Forum Issue 44
Cover Picture
Spectrum and Effects of Sunlight
Link: http://www.scf-online.com/english/44_e/title44_e.htm
According to state-of-the-art knowledge, UVB irradiation is mainly responsible for DNA damage, while UVA irradiation is essentially the originating factor for oxidative stress in the skin. Infrared (IR) rays of the sunlight are responsible for photobiological mechanisms of skin damage and contribute a further aspect which has been not been sufficiently considered up to now. Scientists assume that part of the IR radiation penetrates into the skin, i.e. epidermis and dermis, and leads to biological effects there.
Newsletter
Performance of Cupuassu Products on Hair Care Applications
Authors: Ana Carolina Santos Nogueira, Henrique Jorge Sousa Sales, Hans-Martin Haake
Link: http://www.scf-online.com/english/44_e/cupuassu44_e.htm
Cupuassu (Theobroma grandiflorum) is used by the cosmetic industry in both hair and skin care formulations. The main claims of hair products using Cupuassu are improved hydration, softness, shine and combability. The aim of this study was to evaluate the performance of Cupuassu-based raw materials on hair cosmetic products using hydro-retention, tensile strength and gloss measurements. Cupuassu products, mainly Cupuassu Butter, incorporated into cosmetics products, show a good performance on hair properties. An improvement in hair breaking tensile strength and hydro-retention was observed. The improvement of hair properties provided by Cupuassu Butter is related to its good deposition on hair surface and capacity to penetrate the hair cortex.
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