A Single-Center, Double-Blind, Randomized, Split-Face, Controlled Clinical Trial to Evaluate and Compare the Efficacy and Tolerance of a Thiamidol-containing Product and Hydroquinone-containing Product When Used by Women with Mild to Moderate Melasma

Individual data set of subjects in this single-center, double-blind, randomized, split-face, controlled clinical trial. The study was conducted over the course of 12 weeks in order to assess the efficacy and tolerance of a Thiamidol-containing topical formulation in comparison to a sunscreen only control (Cell A) and against an over-the-counter (OTC) 2% hydroquinone formula (Cell B) when used by women with bilateral dyspigmentation from melasma.
Parameters evaluated (over the course of 12 weeks of use, compared with baseline scores/values and between products):
- changes in melasma area and severity index (MASI)
- subjective assessment by the subjects
- tolerability evaluation (erythema, edema, burning, stining, itching tingling