Black Beard Dye for Natural Grey Coverage If your beard is showing more grey than you'd like, finding a black beard dye that's both effective and gentle can be a challenge. Bigen Men's Beard Hair Dye in Black Brown B102 is specially formulated to colour facial hair quickly and safely, giving you a natural, long-lasting result without the worry of irritation. This ammonia-free formula is designed with sensitive skin in mind, so you can refresh your look with confidence. Key Benefits Ammonia-free formula – gentle on the skin and helps maintain softness, making it a top rated beard dye for those with sensitive skin. Full grey coverage – effectively covers grey hair on the beard, moustache, and sideburns for a natural, uniform colour. Quick results in under 10 minutes – ideal for busy mornings or last-minute touch-ups before an event. Long-lasting colour – the colour stays true and doesn't fade quickly, so you can enjoy your refreshed look for longer. Creamy, no-drip texture – the easy-to-spread formula ensures even distribution without mess, making it one of the best beard dyes for men who value convenience. How to Use Mix equal amounts of the dye and developer (both included) in a non-metallic bowl. Using the enclosed brush, apply the mixture evenly to your beard, moustache, or sideburns. Leave on for 5–10 minutes depending on how dark you want the shade, then rinse thoroughly with lukewarm water until the water runs clear. Gently pat dry with a clean towel. Always perform a skin sensitivity test 48 hours before use, and avoid contact with eyes. For the best results and to keep your skin happy, follow the instructions carefully. Refresh your beard colour naturally with Bigen – the men's beard dye that delivers on both performance and care.