In the study, participants massaged an essential oil blend into the scalp for two minutes a day for seven months.
The results? 44% of the participants who used the essential oil blend showed improvement with hair loss. One of the participants apparently had complete regrowth, going from nearly fully bald to getting a full head of hair.
And what was in the essential oil blend? A mixture which included a very small amount (a few drops) of cedarwood, lavender, thyme, and rosemary oils added to a larger amount of carrier oils, in this case: jojoba and grapeseed.
While no significant adverse events were reported, indicating topical scalp treatment is Safe… Taking oil’s by mouth may be poisonous… in other words, don’t eat it.