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Sun Care
New in Sun Care (page 25 of 26)
Dec 23, 2005 | 03:31 PM CST
Quantifying Benzophenone-3 and Octyl Methoxycinnamate in Sunscreen Emulsions
By: M. Ines R. M. Santoro, D.A.G.C. Oliveira, E.R.…
The authors have validated a high performance liquid chromatographic (HPLC) method for the quantitative determination of benzophenone- 3 and octyl methoxycinnamate present in sunscreen emulsions.
Dec 23, 2005 | 03:27 PM CST
Designing Broad-Spectrum UV Absorbers
By: Uli Osterwalder and Bernd Herzog, Ciba Special…
Design considerations for broad-spectrum UV filters include photostability, solubility, efficacy, safety, registration, patent freedom, and PPD performance. These criteria are described and then applied in the case of bis-Ethylhexyloxyphenol methoxyphenyltriazine (BEMT), a new broadspectrum sunscreen active.
Dec 23, 2005 | 02:34 PM CST
Sunscreen Claims: Demystified?
By: Ken Klein, Cosmetech Laboratories
As you know, sunscreen products are regulated by the U.S. Food and Drug Administration (FDA) as drugs because they are “intended” to prevent disease (skin cancer). As such, they are required to follow the rules and regulations as mandated by the FDA. Thus, they must use Drug Facts labeling; list the drugs (sunscreen actives) using the proper drug nomenclature; list the percentage of drug used; specify the drug function (sunscreen) and label; warnings and directions for use, etc.
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 | 03:54 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.
Aug 31, 2005 | 06:19 PM CDT
What’s New in Skin Protection: A Periodical Review
By: Dr. Martin Rieger, PhD, M & A Rieger Associate…
The author reviews recent publications discussing the protection of human skin against photodamage, reactive oxygen species, and other skin health topics.
Jan 07, 2004 | 04:11 PM CST
A Laboratory Method for Measuring the Water Resistance of Sunscreens
By: Berislav Markovic, Donna Laura and Mark Rerek,…
A new laboratory in vitro method for the measurement of sunscreen water resistance uses spectrophotometric analysis of a model skin substitute before and after 80-minute immersion. It gives good correlation with the FDA’s 80-minute immersion SPF results (very water resistant). The method is especially good for screening new formulations or water-resistant technologies.
May 06, 2003 | 02:00 AM CDT
Pigments as Photoprotectants
By: Jose Ginestar, Pierre-Fabre, Center for Resear…
This article gives an overview of two pigments (ZnO and TiO2), their use in photoprotection and their mechanism of action and ability to attenuate UV radiation. Finally, the organic pigments, the dominant members of a new family of photoprotectors are described.
May 06, 2003 | 02:00 AM CDT
A Review of Current Sunscreen Formulation Techniques and Technology
By: Ken Klein
The author reviews several sunscreen formulations currently on the market and discusses their effectiveness and formulation strategies.
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.