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Testing of a Sunscreen Preparation

Robert M. Sayre, PhD; Deborah L. Desrochers; Edward Marlowe, PhD; Frederick Urbach, MD

Arch Dermatol. 1978;114(11):1649-1651.

Abstract
• To determine the equivalence of xenon arc solar simulator and natural sunlight test results, the sun protection factor (SPF) for an experimental sunscreen preparation was determined using each light source. The minimal erythemal doses (MEDs) were shown to be equivalent on unprotected skin. It was necessary to supply additional heat to the treated skin prior to solar simulator exposures to obtain comparable SPFs. By careful control of the subjects' environment, natural sunlight effects can be duplicated with a solar simulator.

(Arch Dermatol 114:1649-1651, 1978)

Author Affiliations
From the Department of Photobiology Research, Schering-Plough Corp, Memphis (Drs Sayre and Marlowe and Ms Desrochers), and the Skin and Cancer Hospital, Temple University Health Sciences Center, Philadelphia (Dr Urbach).

Footnotes
Accepted for publication June 19, 1978.

Read before the Fourth Annual Meeting of the American Society for Photobiology, Denver, Feb 20, 1976.

Reprint requests to the Department of Photobiology Research, Schering-Plough Corp, 3030 Jackson Ave, Memphis, TN 38151 (Dr Sayre).

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES

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ABSTRACT