Validation of a Medical Device, a Mobile Spectrofluorimeter, Measuring Skin Autofluorescence in Healthy Volunteers.

Inclusion Criteria: * Man and woman over 18 yers old * Women of childbearing age under contraceptive * Healthy volunteers able and willing to follow all procedures of the agreement with the study protocol. * Healthy volunteers affiliated to the social security * Ability to provide written informed consent * Patient's legal capacity to consent to study participation Exclusion Criteria: * Healthy volunteers with scars or open wounds on the palms * Healthy volunteers with warts on their hands * Healthy volunteers with blister on their hands * Healthy volunteers involved in another clinical trial * Pregnant or breastfeeding women * People in emergencies * Deprived of liberty or under supervision