Dem Edges Tinted Edge Control is made with Jamaican Black Castor Oil which has been used to promote healthy hair growth. Use Dem Edges to: -Conceal thin edges -Cover gray -Lay down edges Dem Edges Tinted Edge Control works well with your hair growth regime. Why wait 4 - 8 weeks for you to have a thicker looker hair line? Get immediate coverage with Dem Edges. For external use only.