QueenTrin Restorative Serum is filled with many essential oils not found in typical hair growth products. The oils we use bond to create a serum that stimulates blood flow which leads to an amazing increase in hair growth. Use QueenTrin Restorative Serum daily for the best results. Simply put drops on your scalp and massage into the scalp to stimulate blood flow. This serum can also be used on the hair strands and for hot oil treatments.