Our Men's Shampoo Soap contains butylene glycol, citric acid, and glycerin. It helps restore hair's natural color, reactivate hair color, and prevent hair from turning gray. Its usage is simple: wet the area you want to use the soap on, apply the soap to hair or beard, massage until lather forms, wait 5 minutes before rinsing off with warm water. After use, it eliminates waste accumulation in follicles, unclogs scalp microcirculation, repairs and replenishes follicles with large amounts of melanin, restores follicular function, nourishes follicles, strengthens hair roots, accelerates melanin supply, making hair darker over time