How long does a 13 Oz bottle of shampoo and conditioner usually last you?

Anonymous
My dad would like to know
I'll be washing my hair every other day if I don't have class or work days I have class I will be everyday
I'm using organix I usually get the bigger bottles
I'm going back to college and need at least a month to 2 monthes worth

My hairs very thick and wavy not poofy all over
How long does a 13 Oz bottle of shampoo and conditioner usually last you?
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