4-Methoxyresorcinol is primarily used in the cosmetic and personal care industry as a key ingredient in hair dye formulations. It acts as a coupler, helping to create a wide range of color shades when combined with primary intermediates. Its ability to stabilize and enhance color development makes it a valuable component in permanent and semi-permanent hair coloring products. Additionally, it is utilized in skincare products for its antioxidant properties, which help protect the skin from oxidative stress and environmental damage. In pharmaceutical applications, it is explored for its potential antimicrobial and anti-inflammatory effects, contributing to the development of therapeutic agents.