Hair growth comes down to a number of factors, some of which are genetic. Some people can be very healthy and take good care of their hair and it grows slowly. This would be a great moisturizing mask. But to claim that it would cause your hair to grow is
http://www.shorthaircutsforblackwomen.com/black-tea-rinse-for-hair/ Rosemary Natural Hair Rinse Recipe - 10-15 sprigs fresh rosemary, 4 c water, 3 Tbsp apple cider vinegar. Steep rosemary in water for 30 minutes, strain, add vinegar. Use in place of vinegar conditioner when washing hair, and let sit for 3-4 min before rinsing with cool water.