Design And Development Of A Shampoo With Dark Semi-Permanent Dyes For Gradual Gray Hair Coverage

    April 2026 in “ Cosmetics ”
    Erika Paredes-Sulca, Felix Castillo-Morales, Adil Barrientos-Amau … Bertran Santiago-Trujillo
    Studysummary This study developed and tested a shampoo with semi-permanent dyes designed to gradually cover gray hair, reporting maintained stability and effective gray–black coloration on high-canities hair tresses through eight wash cycles.
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    Research cited in this study 8

    1. A Multifaceted View On Aging Of The Hair And Scalp Cosmetics · 2025
    2. Mechanisms of Impairment in Hair and Scalp Induced by Hair Dyeing and Perming and Potential Interventions Frontiers in medicine · 2023
    3. Effect of Surfactant Type on the Dyeability and Color Resistance of Semi-Permanent Basic Hair Dye Fashion and textiles · 2023
    4. The Psychology of Gray Hair Developmental cell · 2020
    5. A Review of the Etiologies, Clinical Characteristics, and Treatment of Canities International Journal of Dermatology · 2019
    6. Hair Biology Facial Plastic Surgery Clinics of North America · 2018
    7. Pharmaceutical Evaluation of Different Shampoo Brands in Local Saudi Market Saudi pharmaceutical journal · 2017
    8. Types of Hair Dye and Their Mechanisms of Action Cosmetics · 2015