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SPF
New in SPF
Aug 28, 2009 | 04:05 PM CDT
Characterizing Roughness: A New Substrate to Measure SPF
By: M. Pissavini, S. Marguerie, A. Dehais, L. Ferr…
Here, the authors describe a variable that affects the results of SPF testing in vitro—the roughness parameter—and investigate this variable using standard and molded poly(methyl methacrylate) (PMMA) substrates. They conclude that use of a molded substrate, along with the described control chart, improves the reproducibility of in vitro SPF test results.
Jul 01, 2009 | 10:58 AM CDT
Cutest Offers UVA Sunscreen Testing
Cutest Systems Ltd has installed a Labsphere UV-2000S sunscreen analyzer at the companies laboratories in Cardiff, Wales.
Apr 08, 2008 | 01:43 PM CDT
Analytical Device Raises the Bar on UVA-PF
A new UV transmittance analyzer has been designed to exceed Colipa's UVA protection factor (UVA-PF) requirements to support the development of higher protection factor sunscreens.
Feb 05, 2008 | 08:13 AM CST
Research Pathways to Photostable Sunscreens
By: Craig Bonda, The HallStar Company
This article provides a visual depiction of pathways that UV filters undergo when exposed to solar radiation; such pathways often lead to photo-instability. A fluorescence technique is described that has led the author to identify compounds that preserve photostability in a novel manner— by quenching the UV filter’s singlet excited state.
Oct 01, 2007 | 05:03 PM CDT
In Vitro and In Vivo Offered for Sunscreen Testing
Laboratoire Dermscan and HelioScreen Labs are combining their skills to offer a complete new in vitro / in vivo service in the field of sunscreen testing.
Sep 13, 2006 | 11:16 AM CDT
FDA Reviews Sunscreen Active
The Food and Drug Administration(FDA) has requested safety and efficacy data for the sunscreen active ingredient diethylhexyl butamido triazone in concentrations...
Apr 26, 2006 | 11:17 AM CDT
Determination of the In Vitro SPF
By: M. Pissavini and L. Ferrero, V. Alard, U. Hein…
A ring test at six European test centers showed that SPF evaluations with good reproducibility and comparability could be obtained by an in vitro protocol measuring either transmittance or erythema-effective irradiance of product samples applied on PMMA plates.
Jan 13, 2006 | 12:31 PM CST
ISPE Presents Complete Immersion SPF Testing
ISPE Laboratories presents a new method to evaluate the solar protection factor of water-resistant products.
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 13, 2005 | 11:39 PM CST
Quantifying Sunscreens and Preservatives in Cosmetic Products
By: J. Awatramani and J. E. Nucci, Revlon Consumer…
The authors propose and validate an HPLC method for simultaneous quantitation of commonly used commercial sunscreen actives and preservatives in cosmetic emulsions.