Pharmacokinetics Study of Dapsone-Adapalene Fixed Combination Gel in Acne

Inclusion Criteria: * Moderate acne on the face * Willing to avoid swimming during the study * Willing to avoid excessive sunlight and ultraviolet light (e.g., tanning beds)during the study * Willing to avoid moisturizers, sunscreens, cosmetics, and chemical peels during the study Exclusion Criteria: * Severe cystic acne * Use of topical or oral retinoids within 4 weeks * Use of isotretinoin within 3 months * Use of dapsone or adapalene within 3 months * Anticipated need to engage in activities/exercise that would cause profuse sweating * Donated blood or equivalent blood loss within 90 days