Give your hair the nutrients it needs to grow . These 14 herbs will increase blood circulation to your scalp, remove product residue, aid in scalp dandruff treatment and assist in growing hair. Working Roots: Matricaria chamomilla Salvia rosmarinus Serenoa repens Mentha SPP Cymbopogon Calendula officinalis Taraxacum officinale Azadirachta indica Salvia officinalis Cedrus Lavandula Hibiscus SPP. Sabdariffa Rosa SPP.