Accepted for Publication: January 5, 2011.
Author Contributions: All authors had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: Summers and Bordeaux. Acquisition of data: Arrigain. Analysis and interpretation of data: Bena, Arrigain, Alexis, Cooper, and Bordeaux. Drafting of the manuscript: Summers. Critical revision of the manuscript for important intellectual content: Summers, Bena, Arrigain, Alexis, Cooper, and Bordeaux. Statistical analysis: Bena, Arrigain, and Bordeaux. Obtained funding: Cooper and Bordeaux. Administrative, technical, and material support: Summers and Cooper. Study supervision: Cooper and Bordeaux.
Financial Disclosure: Dr Alexis has served as a consultant for Est ée Lauder Inc, has received departmental grants from L ’Or éal, and has received an honorarium from Neutrogena. Dr Cooper has served as a consultant for Est ée Lauder, Procter & Gamble, and L ’Or éal.
Funding/Support: This study was supported in part by grant P30AR39750 from the National Institutes of Health, National Institute of Arthritis and Musculoskeletal and Skin Diseases, Skin Diseases Research Center (Drs Summers and Cooper).
Role of the Sponsors: The sponsors had no role in the design and conduct of the study; in the collection, analysis, and interpretation of data; or in the preparation, review, or approval of the manuscript.
Additional Contributions: We acknowledge Victor Apprey, PhD, for his dedication to this project.