GKMBJ Dust Free Bleaching Powder Professional Use Only Default Title - $0.00 Enquire This product is currently sold out. For Professional Use. GKMBJ Italian Bleach is made with great care and with results in mind. It's dust free, rapid response formula is great for every salon. Suitable for highlighting and on and off the scalp bleaching applications, this bleach is the perfect addition to your in salon services.