Doo Gro Hair Vitalizer Mega Thick Anti-Thinning Formula 4 ozHelps thicken and strengthen weak and damaged hair. Its special blend of vitamins, pure herbs, shea butter and botanical thickeners provides needed nourishment for thick, strong, healthy and shiny hair. Safe on all types of hair including natural, color treated and relaxed. Works wonders on the thinning edges and temple areas.