10 Ounces. Doo Gro Mega Thick Leave-In Gro Strengthener is an oil-free, weightless formula that thickens and strengthens weak, damaged dry hair. Enriched with sea butter, protein and botanical thickeners to smooth hair cuticles and help reduce split ends while moisturizing and detangling. Quenches dry, thirsty hair and leaves it shiny, soft and manageable. Great for the whole family and can be used on all types of hair including natural, color-treated, bleached, weaved, braided and relaxed.