One tube , 15 ml, 1/2 oz, is sufficient for up to 20 applications. Within ten minutes (development period) Refectocil produces permanent coverage and even coloration which lasts several weeks. The vivid coloration is light and water resistant. A complete line of tinting accessories renders the application of Refectocil professional, simple and very profitable. Refectocil is the perfect choice for dyeing beards, sideburns and even intimate hair!