If you have thin, lighter, and hair that gets easily damaged, you should use the oil once a week as a treatment. If dandruff is your issue, then use a few drops of rosemary oil alongside gentler oils. Try applying a few drops to washed and toweled hair pre-dry, or more drops if using it as a treatment to be rinsed off.
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How Often Should You Use Rosemary Oil In Your Hair?
Mixing rosemary oil with lighter oils such as coconut, castor, or jojoba oil will help dilute the rosemary oil's strength and work to soothe and nurture the hair; diluted in this way, it can be used up to 4 times a week for 1-3 months, 2-3 times a year.
