Financial disclosure
The authors have no financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.
Competing interests disclosure
F Herms: consulting for Sun Pharma and Sanofi; N Basset-Seguin: consulting for Sun Pharma, Sanofi and Galderma. The authors have no other competing interests or relevant affiliations with any organization or entity with the subject matter or materials discussed in the manuscript apart from those disclosed.
Writing disclosure
Nonfunded writing assistance supplied by Sun Pharma.