Rosemary (Rosmarinus officinalis) essential oil is one that I use frequently in my personal hair care products. Distilled from the leaves of the plant, it has a lovely earthy smelly. It is part of the Labiatae family which includes thyme, peppermint, and marjoram to name a few.
Rosemary has several documented medical uses. There are several studies looking at links between rosemary and memory. Indications are that rosemary can help improve your memory. It has been used in schools and by students individually to help with studying for and writing exams as it seems to help keep the mind focused. Currently there are studies happening to see if it is helpful in treating patients with Alzheimers.
As I mentioned above, I am using it in my hair care products. It helps strengthen your hair. It is also thought to help slow hair loss. And it is useful for treating dandruff.
There are numerous other documented uses for rosemary – respiratory issues, rheumatism, skin care. It will definitely be a staple in my supplies when I look at doing aromatherapy treatments!