Agents Effect Under Visible Light on Caucasian, Asian and Darker Skin Types

Inclusion criteria

• ✓. Healthy female or male volunteer from 18 to 50 years old
• ✓. Caucasian Skin type III-IV according to the Fitzpatrick classification OR Asian Skin type III-IV (chinese population) according to the Fitzpatrick classification OR Darker Skin type VI according to the Fitzpatrick classification
• ✓. Average ITA° (Individual Typologic Angle calculated value) on the back between 24° and 36° at screening and inclusion visits with an allowed difference of ± 2° between screening and inclusion visits, for Caucasian volunteers OR Average ITA° (Individual Typologic Angle calculated value) on the back between 24° and 36° at screening and inclusion visits with an allowed difference of ± 2° between screening and inclusion visits, for Asian volunteers OR Average ITA° (Individual Typologic Angle calculated value) on the back less than -30° at screening and inclusion visits with an allowed difference of ± 2° between screening and inclusion visits, for Darker skin volunteers
• ✓. Uniform skin color over the four zones (difference in ITA° between each zone should not be more than 4°)
• ✓. Absence of freckles, naevi, hypo or hyper pigmented regions, hairs and marks of bronzing on the investigational area on the back
• ✓. Female subject of childbearing potential, who is not sexually active, or using an effective contraceptive method\* for at least one month before the beginning of the study, and throughout the study or menopausal female (with absence of menstruations for less than one year) or post-menopausal female (with absence of menstruations for more than one year)
• ✓. Female of childbearing potential or menopausal female (with absence of menstruations for less than one year) willing to undergo urine pregnancy test
• ✓. Subject willing and able to fulfil the study requirements and schedule

Exclusion criteria