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New in Sun Care (page 4 of 8)
Feb 01, 2007 | 02:06 PM CST
By: Robert Holtz, BioInnovation Laboratories
The methods described in this article highlight some of the markers that can be used to assess the UV protective effects of a test material. All of these markers represent either an index of UV-induced damage to the cell or the cell’s response to the damage.
Feb 01, 2007 | 10:49 AM CST
By: G. Wakefield, J. Stott and A. Duggan, Oxonica …
Photoinduced degradation and activity in chemical and mineral UV-absorbing actives results in a decrease in UVA protection during topical use, with a corresponding risk of skin pathologies in the user. New developments in UV absorbers are shown to maintain a stable, high level of UVA protection during use.
Dec 28, 2006 | 01:24 PM CST
By: Daniel Schmid and Fred Zülli, Mibelle AG …
Impaired functioning of mitochondria is a very important factor in aging. Irradiation of normal human fibroblasts with UV was shown to increase the frequency of mutations in the mitochondrial DNA. Treatment of the fibroblast culture with a nanoemulsion containing coenzyme Q10 and vitamin E acetate was found to protect the mitochondrial DNA against UV-induced mutations.
Dec 28, 2006 | 11:44 AM CST
By: A. Plantivaux, Sophia Antipolis University; E.…
In the presented studies, researchers investigated the effect of the (Cys-Gly)2 dimer peptide against UV-induced oxidative stress on cultured human fibroblasts. The dimer peptide was found to act on a range of mechanisms involved in cell defense against such stress.
Dec 28, 2006 | 11:08 AM CST
By: Sirui Jiang, Danyi Quan and Howard Maibach, MD…
Skin cancer is diagnosed in more than 1.5 million people yearly and more than 90% of the cases are believed to be related to sun exposure. This article discusses current knowledge on the biological process of UV-induced skin damage. Of particular interest is the role of antioxidants in the prevention of carcinogenesis.
Oct 02, 2006 | 10:16 AM CDT
By: Elzbieta Kasprzyk, TRI-K Industries Inc. and …
Studies presented here show that GA reduces emulsion particle size and facilitates the aqueous dispersion of particulate materials, thus demonstrating how it improves the SPF of organic, inorganic and mixed sunscreen preparations.
Oct 02, 2006 | 10:10 AM CDT
By: Isabelle Van Reeth, Stéphanie Postiaux and Hei…
Silicones give formulators choices for a variety of high-performance sun care products and delivery systems. Silicones can boost SPF, add wash-off resistance and help prevent sand from sticking to the skin.
Jun 29, 2006 | 10:27 AM CDT
By: Martin Rieger, PhD, Tinton Falls
This review of articles drawn primarily from the pages of the 2005 and 2006 Journal of Investigative Dermatology discusses the skin’s inherent mechanisms for photoimmunoprotection, photoadaptation and photoprotection following exposure to the sun.
Jun 01, 2006 | 10:46 AM CDT
By: Donald S. Orth, PhD, Neutrogena Corp.
Sunscreen products, even those formulated as anhydrous or powder formulations, may need preservative systems because of the high risk of microbial contamination or water intrusion, especially during consumer use around water.
Jun 01, 2006 | 10:42 AM CDT
By: Nadim A. Shaath, PhD, Alpha Research & Develop…
Despite regulation limitations, more and more new ingredients, products and techniques for the sun care industry have been introduced. The regulatory status of currently approved UV filters and the introduction of new and improved UV filters will be reviewed.