8 Ounces. Doo Gro Leave- In Growth Treatment helps promote strong, healthy, growing hair. Its unique non-greasy, non-oily formula repairs damaged hair and mends split ends. It also adds luster, conditions, softens and adds beautiful shine to hair. Doo Gro Leave-In Growth Treatment is extra light and safe to use on all types of hair including color-treated, bleached and relaxed.