About the Authors

Aurélie Porcheron

Affiliations CE.R.I.E.S. – the CHANEL R&T skin research center on healthy skin, Neuilly-sur-Seine, France, Gettysburg College, Gettysburg, Pennsylvania, United States of America

Emmanuelle Mauger

Affiliation CE.R.I.E.S. – the CHANEL R&T skin research center on healthy skin, Neuilly-sur-Seine, France

Richard Russell

rrussell@gettysburg.edu

Affiliation Gettysburg College, Gettysburg, Pennsylvania, United States of America

Competing Interests

AP and EM are employees of CE.R.I.E.S. - the CHANEL R & T skin research center on healthy skin. There are no patents, products in development or marketed products to declare. This does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: AP RR. Performed the experiments: AP. Analyzed the data: EM. Contributed reagents/materials/analysis tools: AP RR. Wrote the paper: AP RR.