Fractionated 1927-nm Non Ablative Thulium Laser in Treating Post Inflammatory Hyperpigmentation

Inclusion Criteria: * Patient age 18 and older * Patient with skin phototypes IV-VI * Patient able to understand requirements of the study and risks involved * Patient able to sign a consent form * Patient to have discontinued all oral medications used to treat pigmentary abnormalities and all topical medications, except for sunscreen, used to treat pigmentary abnormalities on the buttocks one month prior to treatment Exclusion Criteria: * A patient who has skin dyspigmentation, birth marks, tattoos, or other skin findings at baseline on either buttock that may obscure study results * A patient who is lactating, pregnant, or planning to become pregnant