Aromatherapy tip for concentration Aug 2, 2007 18:19:29 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Allan on Aug 2, 2007 18:19:29 GMT -5 Lemongrass is said to stimulate the left brain makingit a great oil for lack of concentration. Use in a diffuseror aroma lamp at home or work for clear, logical thinking.