2 lbs, *Packaging may appear different due to brand manufacturer update. Customer may receive either product presentation during the packaging update transition. What it is:The Blacklight Extra Blonde High Performance Ionic Lightener is a powerful, dust-free lightener that lifts up-to 9 levels, and can be used on and off the scalp giving you precise and predictable results every time. What it does:Traditional lighteners increase hair porosity which can damage the hair cuticles. As the cuticles get damaged, they start to lose their protective capabilities. This can result in uneven colour results, dullness, brittleness, fly-aways and breakage. What else you need to know: Blacklight Extra Blonde is formulated with positively charged compound that forms an ionic bond during the lightening process. This bond protects and smooths the hair cuticles, guarding them from over porosity and ensures even colour results while making hair, soft, shiny, and static free. Product Options Available are as follows: Size : 1.6 oz - Oligo Blacklight Extra Blonde High Performance Ionic Lightener Size : 1 lb - Oligo Blacklight Extra Blonde High Performance Ionic Lightener