This 2-in-1 shampoo and conditioner from Just for Men gradually reduces grey beard hairs up to 20% with its innovative formula containing military-grade Alpha Keratin. It is gentle on hair and skin, with no ammonia or peroxide. The triple patented formula works with all hair textures and colors. Use this shampoo and conditioner until you achieve the desired grey beard hair reduction and color. Then alternate with your regular shampoo and conditioner to maintain the look. This beard dye gradually colors hair up to 3x faster than the leading competitor product. It is free of harsh chemicals and works with all hair types and colors. The innovative formula contains Tri-Peptide technology to strengthen hair and improve shine. It is formulated in a bio-tech lab with military-grade ingredients.