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Journal Article
Randomized Controlled Trial
Comparing the Efficacy and Tolerability of Moderate to Severe Hyperpigmentation and Skin Unevenness.
Journal of Drugs in Dermatology : JDD 2024 January 2
Dyschromia is the result of irregular facial pigmentation. These cutaneous manifestations can have a significant impact on the quality of life of those affected, especially among females and skin of color. In this randomized, double-blinded, two-cell, single-center, 16-week clinical study, all subjects had moderate to severe (scores 4-9 on the modified Griffiths Scale) hyperpigmentation and skin unevenness of the face such that approximately 20% of subjects had post-inflammatory hyperpigmentation (PIH), 40% had overall mottled hyperpigmentation, and 40% had superficial melasma (Superficial Melasma was determined by Wood's Lamp Assessment). Study participants received either Product A (proprietary new formulation - Cysteamine HSA) or Product B (current marketed product - Cyspera®) and used the test product either in the morning or at night, beginning with every other day application, and then advanced to every day, or as tolerated. The results revealed that both Product A (Cysteamine HSA) and Product B (Cyspera®) had statistically significant improvement in facial hyperpigmentation and skin unevenness, however, Product A (Cysteamine HSA) had better tolerability results for scaling, peeling, burning, stinging, erythema, and dryness, indicating that Product A (Cysteamine HSA) outperformed Product B (Cyspera®). J Drugs Dermatol. 2024;23(1):1260-1265. doi:10.36849/JDD.7584.
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