(1) Usage test on 10 subjects aged 18 to 88, with dry skin, for 7 days, satisfaction %.
(2) Instrumental measurement test on 19 subjects after 28 days + measurement at 24 hours.
(3) Usage test under dermatological control on 30 subjects, for 28 days, satisfaction %.
(4) Usage test on 30 volunteers aged 26 to 68, with dry to very dry skin and sensitive skin, for 21 days.