Clairol Bw2 Tub Powder Lightener Extra-Strength, 8oz Clairol Professional BW2+ Dedusted Extra Strength Powder Lightener with malic acid provides up to 9 levels of lift for bright, even results. Mixes into a creamy consistency for easy application both on and off-scalp. BenefitsVegan* Free of animal-derived ingredients How to useFor on-scalp application, do not use higher than 20 Vol. developer. For maximum lift, use 40 Vol. developer and a 1:1.5 weight ratio.