An Observational Study to Assess Objective Skin Pigmentation Variation.

Exclusion Criteria

• •For study cohort #1 (Healthy volunteers):
• •Extensive tattoos covering \>50% of the total body area
• •Recent extensive sun exposure (e.g. sun tanning booth or stay in a tropical country) in the last 3 weeks
• •Use of self-tanner products in the last 3 weeks
• •For study cohort #2 (Patients):
• •Extensive tattoos covering \>50% of the total body area
• •Extensive skin lesions covering \>50% of the total body area
• •Recent extensive sun exposure (e.g. sun tanning booth or stay in a tropical country) in the last 3 weeks
• •Use of self-tanner products in the last 3 weeks