tea tree oil, rosemary oil, and sweet almond oil may be found in health food shops or drugstores. These oils may be applied to directly the ends of the hair, added to shampoo, or used for leave-in ...
Further studies, including ones in human subjects, are needed to justify the use of patchouli oil as an anti-inflammatory agent. A 2011 study assessed the pain-relieving effects of patchouli ...