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• Research from 2017 showed that rosemary can help in the management of bacterial infections.
• This means that if hair loss is due to a bacterial scalp infection, rosemary oil may be helpful in clearing the infection and regrowing hair.
• “Massage it directly into the scalp, leave it on for 20 minutes, then shampoo the oils out of the hair and scalp.” If you have very fine hair and/or an oily scalp, James advises using rosemary oil once a week as a scalp treatment and washing it out of hair