💇 Scalp & hair
Essential oils for hair growth
One oil here has real trial data; the rest are traditional scalp-care favourites. Always dilute into a carrier or shampoo, and keep expectations realistic — results, where studied, take months.
The oils people reach for
- Rosemary
The standout: a 2015 trial found rosemary oil performed comparably to 2% minoxidil for androgenetic hair loss over six months — promising, but a single small study.
Key constituents: 1,8-cineole, camphor, α-pinene
- Cedarwood
A traditional scalp-blend partner, often paired with rosemary and lavender.
Key constituents: 1-epi-cubenol
- Lavender
Gentle and soothing on the scalp; a common base in hair blends.
Key constituents: linalool, linalyl acetate, camphor
- Peppermint
Cooling and stimulating on the scalp — use well diluted, it tingles.
- Clary Sage
Herbaceous and balancing, long used in hair and scalp care.
Key constituents: linalyl acetate, linalool, germacrene d
- Ylang Ylang
Rich and floral, traditionally added to condition and scent hair blends.
Key constituents: β-caryophyllene, α-farnesene
- Thyme
A potent herb oil used sparingly in classic scalp formulas — very dilute.
Key constituents: thymol, p-cymene, γ-terpinene
A blend to try
- Rosemary3 drops
- Cedarwood2 drops
- Lavender1 drop
In 30 ml carrier (~1%). Massage into the scalp, leave 10 minutes, then wash out. 6 drops total
Safety
Dilute to ~1% for the scalp and patch-test — peppermint and thyme can irritate neat. Not for use on children’s scalps without professional advice.
Common questions
- Do essential oils really help hair growth?
- Rosemary oil has the best evidence — one small trial found it comparable to 2% minoxidil over six months. The others are traditional scalp-care favourites without that level of data.
- How do I use rosemary oil for hair?
- Dilute to about 1% in a carrier oil, massage into the scalp a few times a week, and give it months rather than weeks.
Honest framing only — essential oils support a routine, they are not treatments or cures. For medical concerns, see a professional. How we cite the chemistry →