Clairol Professional Help Line:
Hotlines are open from 8:30am to 8:30pm Monday – Friday and 9:00am – 6:00pm Saturday & Sunday EASTERN TIME.
Mix BW2 with 10 or 20-volume developer in a plastic bowl to a creamy consistency. Apply where highlights are wanted. Process up to 30 minutes, or until desired lightness is achieved.
For Professional Use.