Inclusion Criteria:
For inclusion, the subject must:
- Be at least 18 years old;
Be a healthy volunteer with Fitzpatrick Skin phototypes IV-VI based on the scale below:
- Burns minimally, tans easily, and above average with each exposure
- Rarely burns, tans easily and substantially
- Never burns and tans profusely
- Agree to abide by the Investigator's guidelines regarding photosensitizing drugs and photoprotection;
- Be able to understand the requirements of the study, the risks involved, and be able to sign the informed consent form;
- Agree to follow and undergo all study-related procedures.
Exclusion Criteria:
Subjects will be excluded if any of the following apply:
- Women who are lactating, pregnant, or planning to become pregnant.
- Patients with a recent history of vitiligo, melasma, and other disorders of pigmentation with the exception of post inflammatory hyperpigmentation.
- Patients with a known history of photosensitivity disorders.
- Photosensitizing medications may be continued throughout of the study at the discretion of the investigator (appendix A).
- Patients with a known history of melanoma or non-melanoma skin cancers
- Concomitant use of tanning beds.
- Sun exposure of the irradiated or control areas.
- Any reason the investigator feels the patient should not participate in the study.