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Quantification of Hypopigmentation Activity In Vitro
06:08

Quantification of Hypopigmentation Activity In Vitro

Published on: March 6, 2019

12.1K

Development and Clinical Assessment of a Comprehensive Product for Pigmentation Control in Multiple Ethnic

Elizabeth T Makino, Kuniko Kadoya, Monya L Sigler

    Journal of Drugs in Dermatology : JDD
    |January 18, 2017
    PubMed
    Abstract

    Insights

    A new hydroquinone-free product, LYT2, effectively reduces hyperpigmentation by targeting key melanin production pathways. Clinical trials show significant results across diverse ethnic groups, demonstrating superior efficacy and safety.

    Area of Science:

    • Dermatology
    • Cosmetic Science
    • Molecular Biology

    Background:

    • Ethnic variations in skin pigmentation necessitate tailored treatments.
    • Understanding biological pathways is crucial for effective pigmentation management.

    Purpose of the Study:

    • Develop a comprehensive, hydroquinone-free product (LYT2) targeting all major pigmentation pathways.
    • Assess LYT2's clinical efficacy and safety across diverse ethnic populations.

    Main Methods:

    • Pathway analysis identified LYT2 ingredients for optimal melanin reduction in a 3-D skin model.
    • qPCR analyzed key melanogenesis gene expression (TYR, TYRP-1, DCT, MITF).
    • A clinical study compared LYT2 efficacy and tolerability against 4% hydroquinone (HQ).

    Main Results:

    • LYT2 achieved an average of 45% melanin suppression across experiments.
    • Significant downregulation of four key melanogenesis genes was observed.
    • LYT2 demonstrated statistically significant hyperpigmentation reduction from week 2 through week 12 in all tested ethnic groups.

    Conclusions:

    • LYT2 comprehensively manages 6 melanogenesis pathway categories, offering a novel HQ-free solution.
    • LYT2 shows superior pigmentation control in vitro and earlier clinical control than 4% HQ.
    • Clinical studies confirm LYT2's benefits for Caucasian, Hispanic, and African ethnic groups.

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