Schwarzkopf BLONDME Premium Care Developer has specially formulated to partner with Blonde Me Bleach and color shades. Its caring formula supports hair's natural moisture balance which ensures your new blondes have a brilliant shine and a wonderfully soft feel to their hair.BLONDME Developer comes in 4 strengths:2% (7 vol)—perfect for toning hair that's already been lightened and for gentle bleaching.6% (20 vol)—the strength for conventional bleaching or for toning on naturally light (level 8 or above) blonde hair.9% (30 vol)—ideal for maximum bleaching, white hair blending, or lifting naturally light blonde hair.12% (40 vol)—choose this one for lifting or white blending on a natural base at level 6 or 7.Schwarzkopf BLONDME Premium Care Developer comes in a 1000-ml (1-litre) bottle.