How many levels will this kit lighten my hair?

Up to 8 levels! This will vary depending on your starting hair level, the health of your hair, application, processing time, and how well your hair takes bleach naturally. If you are starting from a dark base color you most likely won’t make it to platinum blonde in one session. If you are starting from level 5 virgin hair you should be able to achieve the lightest level of blonde your hair can go.