JPRN‐UMIN000026877.

Methods	Factorial randomised
Participants	Target sample size: 50
Interventions	Use the foaming cleanser and lotion every single day for 4 weeks Use the foaming cleanser and cream every single day for 4 weeks
Outcomes	Change in skin symptoms by dermatological diagnosis before and after topical application of 4 weeks Change in water content, transepidermal water loss, skin pH, and composition of stratum corneum before and after topical application for 4 weeks
Notes	Clinical trial link: https://apps.who.int/trialsearch/Trial2.aspx?TrialID=JPRN-UMIN000026877