Rosemary
Rosmarinus officinalis
- What it is
- An aromatic Mediterranean herb whose leaves are steam-distilled into an essential oil rich in 1,8-cineole and carnosic acid.
- Traditional use
- Used across the Mediterranean and Middle East for centuries as a scalp rinse and hair tonic, long before it was studied clinically.
- Potential benefits
- Supports circulation at the scalp surface
- Helps calm itch and low-grade irritation
- Commonly used for thinning at the crown and hairline
- Hair & scalp suitability
- Suits most scalp types when diluted. Very potent undiluted — never apply neat, and avoid during pregnancy without medical advice.
- What the evidence says
- A 2015 randomised trial in SKINmed Journal compared diluted rosemary oil with 2% minoxidil over six months and reported comparable hair counts, with less scalp itching in the rosemary group. It is one study on a small group, so treat it as promising rather than proven.
- How Dermyra uses it
- Present as a diluted botanical extract in a cold-pressed carrier base, so it can be massaged in directly without further dilution.



