Rosemary and Peppermint Oil for Hair: Benefits and Recipes

Rosemary and peppermint oil for hair make a naturally refreshing pair for anyone who wants to turn ordinary scalp care into a consistent botanical ritual. Rosemary brings the strongest human research of the two oils, including a six-month trial that recorded a significant increase in hair count. Peppermint adds an energizing cooling sensation and promising laboratory research involving hair follicles and growth-related markers.

The pairing is simple to try at home. Begin with pure Northridge Oak Rosemary Essential Oil and Northridge Oak Peppermint Essential Oil, dilute them in a carrier oil and massage a small amount across the scalp two or three times each week. The recipes below give you exact measurements, along with a practical timeline for giving rosemary the same six-month opportunity used in the clinical research.

Why rosemary and peppermint oil work so well together for hair

Rosemary essential oil has a green, herbaceous and gently camphoraceous aroma. Peppermint essential oil is crisp, bright and unmistakably minty. Rosemary gives the blend its grounded herbal character, while peppermint creates the immediate cooling freshness that makes scalp massage feel invigorating.

The oils also complement one another from a research perspective. Rosemary has been evaluated in a six-month human comparison trial for androgenetic alopecia. Peppermint has produced impressive results in a laboratory animal model, including changes in follicle number, follicle depth and growth-related activity. Used together, rosemary can remain the foundation of the routine while peppermint contributes its refreshing sensory experience and its own scientific interest.

That balance matters in a practical recipe. Peppermint is powerful, and one or two drops can be clearly felt and smelled. Using more rosemary than peppermint keeps the formula comfortable, pleasant and rosemary-forward without losing peppermint’s welcome cooling lift.

What the rosemary hair-growth study found

The most important rosemary research is a randomized comparative trial published in SKINmed in 2015. Researchers enrolled 100 people with androgenetic alopecia. Fifty participants used a rosemary-oil lotion and fifty used 2% minoxidil. Hair count, standardized photographs, participant observations and scalp effects were evaluated over six months.

At the three-month checkpoint, neither group had a statistically significant increase in hair count. At month six, the story changed: both the rosemary group and the 2% minoxidil group experienced significant increases in hair count compared with baseline. Researchers found no statistically significant difference between the groups in the amount of hair-count change. Scalp itching increased in both groups, but it was reported more frequently in the minoxidil group.

This research offers two especially useful lessons. First, rosemary earned meaningful results in a human trial. Second, three months was too early to make the final judgment. The measurable change appeared at six months, which is why consistency should be built into your routine from the beginning.

You can read the original rosemary and minoxidil study through PubMed, explore our complete Rosemary Oil vs. Minoxidil comparison and follow the month-by-month plan in How Long Does Rosemary Oil Take to Work for Hair Growth?

What the peppermint hair-growth research found

Peppermint’s best-known hair-growth research was published in Toxicological Research in 2014. The investigators compared a 3% peppermint essential oil preparation with saline, jojoba oil and 3% minoxidil in a mouse model over four weeks.

The peppermint group showed particularly strong hair-growth activity. Researchers reported increases in dermal thickness, follicle number and follicle depth. They also observed increased alkaline phosphatase activity and IGF-1 expression, two measurements connected with active hair-follicle development in the study model. The peppermint preparation produced these effects without changes in body weight or food efficiency, which the authors described as hair-growth promotion without toxic signs in that experiment.

This was laboratory animal research rather than a human clinical trial, so it answers different questions from the rosemary study. Its value is that it gives researchers—and natural hair-care enthusiasts—a closer look at how peppermint interacted with follicles and growth-associated markers. It also helps explain why peppermint continues to appear in scalp oils, shampoos and invigorating hair-care formulas.

Read the complete open-access study, Peppermint Oil Promotes Hair Growth without Toxic Signs, and visit our guide to Peppermint Oil for Hair and Scalp.

A second human study supports essential-oil scalp massage

Another useful piece of research comes from a 1998 randomized, double-blind trial involving 86 people with alopecia areata. The active group massaged a blend of rosemary, thyme, lavender and cedarwood essential oils in jojoba and grapeseed carrier oils into the scalp daily. The control group used only the carrier oils.

After seven months, 19 of the 43 participants in the essential-oil group showed improvement, compared with 6 of 41 in the carrier-oil group. The researchers concluded that the essential-oil treatment was significantly more effective than the carrier oils alone.

Because the formula contained four essential oils, the trial evaluates the complete blend rather than rosemary by itself. For someone building a natural scalp routine, however, it provides encouraging human evidence for the broader practice of consistently massaging properly diluted essential oils into the scalp over several months. The study is available through PubMed.

Rosemary and mint in traditional hair-care rituals

Long before modern researchers counted hairs or measured follicle depth, aromatic plants were being steeped into waters, vinegars and oils for bathing and grooming. Rosemary became especially well known in Mediterranean and European herbal traditions. Its fragrant leaves were added to hair rinses, infused oils and aromatic waters intended to leave the scalp and hair feeling freshly cared for.

Mint plants also have a long history in cleansing and refreshing preparations. Their unmistakable cooling aroma made them natural choices for baths, washes and personal-care formulas. Modern steam-distilled peppermint essential oil concentrates that familiar mint character into a bottle, allowing just one or two drops to transform a full recipe.

Combining rosemary and peppermint carries those practical traditions forward. The method is modern and measured, but the idea remains timeless: choose fragrant botanicals, prepare them thoughtfully and use them consistently as part of caring for the hair and scalp.

Five rosemary and peppermint oil recipes for hair

Every recipe below dilutes the essential oils before they touch the scalp. One fluid ounce is approximately 30 mL. Six total drops in one ounce of carrier oil creates a gentle blend of about 1%, an excellent starting strength for a repeatable pre-shampoo routine.

1. Everyday rosemary and peppermint scalp oil

• 1 fluid ounce jojoba oil
• 4 drops Rosemary Essential Oil
• 2 drops Peppermint Essential Oil

This balanced recipe keeps rosemary at the center while giving peppermint enough presence to feel fresh and cooling. Jojoba is lightweight and easy to distribute across the scalp. Use it as your starting formula when you want to experience both oils clearly.

2. Rosemary-forward hair-growth blend

• 1 fluid ounce fractionated coconut oil
• 5 drops Rosemary Essential Oil
• 1 drop Peppermint Essential Oil

This is our favorite rosemary-forward option. The single peppermint drop brightens the formula without overtaking rosemary’s herbal aroma. Fractionated coconut oil remains liquid and provides excellent slip for a three-to-five-minute scalp massage.

3. Rosemary, peppermint and lavender evening blend

• 1 fluid ounce jojoba oil
• 3 drops Rosemary Essential Oil
• 1 drop Peppermint Essential Oil
• 2 drops Lavender Essential Oil

Lavender softens the sharper herbal notes and creates a beautifully rounded aroma. Apply this blend before an evening shower when you want scalp care to feel like a calm personal ritual.

4. Rosemary, peppermint and cedarwood blend

• 1 fluid ounce jojoba or fractionated coconut oil
• 3 drops Rosemary Essential Oil
• 1 drop Peppermint Essential Oil
• 2 drops Cedarwood Essential Oil

Cedarwood adds a warm, dry and woodsy base note that anchors the bright peppermint and green rosemary. It is also inspired by the combination of aromatic oils studied in the 1998 scalp-massage trial.

5. Small 10 mL trial blend

• 10 mL jojoba oil
• 1 drop Rosemary Essential Oil
• 1 drop Peppermint Essential Oil

This small batch is an easy way to try the pairing before preparing a full ounce. Add the ingredients to a clean 10 mL amber dropper bottle, label it and gently roll the bottle to combine. A few drops of the finished oil are usually enough for a focused scalp area.

How to make and apply your scalp oil

1. Add the measured carrier oil to a clean, dry amber bottle.
2. Add the rosemary, peppermint and any optional partner oil.
3. Cap the bottle and gently roll it between your palms to combine.
4. Label the bottle with the ingredients, dilution and preparation date.
5. Beginning with dry hair, create several parts across the hairline, temples and crown.
6. Apply a small amount of the finished blend along each part.
7. Massage with the pads of your fingers for three to five minutes. Use gentle circular motions rather than scratching with your nails.
8. Leave the oil in place for 30 to 60 minutes, then shampoo thoroughly.

You do not need to saturate the hair. The goal is to spread a modest amount over the scalp so your fingertips can move comfortably. Fine hair may need only a few drops of finished oil, while thicker or tightly curled hair may require slightly more for even distribution.

How often to use rosemary and peppermint oil for hair

Use your diluted pre-shampoo blend two or three times each week. A schedule such as Monday, Wednesday and Saturday is easy to remember and gives you a consistent rhythm without turning scalp care into a complicated project.

The rosemary clinical trial used a standardized lotion consistently over six months. A homemade carrier-oil recipe is not the same formula, but the study still gives us a valuable lesson about time: rosemary deserves a full, patient routine. Take baseline photographs before you begin, photograph the same areas once each month and plan your main comparison for month six.

Use the same room, lighting, camera distance, hairstyle and part placement each time. Monthly photographs of the hairline, temples, center part and crown will show gradual changes more clearly than daily mirror checks.

Can you add rosemary and peppermint oils to shampoo?

Yes, but mix only the amount you will use immediately. Place about two tablespoons of fragrance-free shampoo in a small cup, add 1 drop Rosemary Essential Oil and 1 drop Peppermint Essential Oil, stir, then shampoo while keeping the mixture away from the eyes.

For a focused scalp ritual, we prefer the carrier-oil recipes because the dilution is easy to measure and the oil gives your fingertips comfortable slip during massage. A pre-shampoo blend also makes it easier to keep the routine identical from one application to the next.

How to personalize the blend

The best recipe is the one you look forward to using. Adjust the partner oils while keeping the total essential-oil amount modest:

• For a rosemary-forward aroma: use 5 drops rosemary and 1 drop peppermint.
• For more cooling freshness: use 4 drops rosemary and 2 drops peppermint.
• For a softer evening aroma: use rosemary, peppermint and lavender.
• For a warm, woodsy character: add cedarwood while keeping the total at 6 drops per ounce.
• For a lighter texture: choose jojoba or fractionated coconut oil and apply less finished blend.

Change only one part of the recipe at a time and record the proportions you enjoy. That makes a favorite formula easy to recreate.

Choosing pure rosemary and peppermint essential oils

Hair recipes begin with only a few ingredients, so oil quality matters. Northridge Oak Rosemary and Peppermint Essential Oils are 100% pure and undiluted, bottled in small batches and third-party GC/MS tested. They contain no fillers, synthetic fragrance or added carrier oil.

The 10 mL amber bottles help protect the concentrated oils from light, while the orifice reducer makes it easy to count drops accurately. Store both bottles tightly capped away from direct sunlight and heat. Keep water out of the bottles and replace each cap promptly after use.

Use the blend comfortably and safely

Rosemary and peppermint essential oils are concentrated and should not be applied undiluted. Patch test the finished carrier-oil blend before broader scalp use. Keep it away from the eyes, inner ears, face and broken or irritated skin, and wash your hands after application.

Peppermint has a powerful cooling effect, so begin with the recipes exactly as written rather than increasing the drop count. Stop using the blend if it causes persistent discomfort. Keep essential oils out of reach of children and pets, and review our Complete Essential Oil Safety Guide before beginning a new topical routine.

What you have learned

• Rosemary and peppermint create an herbaceous, cooling combination for consistent scalp massage.
• A 100-participant human trial found significant hair-count increases in the rosemary group after six months.
• The rosemary group’s hair-count change was not significantly different from the 2% minoxidil group’s change in that trial.
• A peppermint animal study reported increased follicle number, follicle depth, dermal thickness and growth-related activity.
• A separate human trial found significantly greater improvement with a rosemary-containing essential-oil massage blend than with carrier oils alone.
• Six drops of essential oil in one fluid ounce of carrier oil creates a gentle 1% starting blend.
• Two or three applications weekly and consistent monthly photographs make the routine easy to follow and evaluate.

Continue learning about rosemary and peppermint for hair

• Rosemary Oil for Hair Growth: What the Research Shows
• How Long Does Rosemary Oil Take to Work for Hair Growth?
• How to Use Rosemary Essential Oil for Hair
• Rosemary Hair Oil Recipe: 5 Easy Blends
• Peppermint Oil for Hair and Scalp
• Rosemary Essential Oil: Benefits, Uses, Blends and Safety
• Peppermint Essential Oil: Uses, Recipes and Everyday Wellness

Start your rosemary and peppermint hair routine

Rosemary and peppermint oil for hair bring research, tradition and an enjoyable sensory experience into one easy ritual. Mix a gentle bottle, choose two or three days each week and take your baseline photographs. Then give rosemary the full six-month timeline that produced meaningful results in the clinical trial.

Shop Northridge Oak Rosemary Essential Oil and Northridge Oak Peppermint Essential Oil, prepare your favorite recipe and discover how naturally this fresh botanical pairing fits your hair-care routine.

References and further reading

1. Panahi Y, Taghizadeh M, Marzony ET, Sahebkar A. Rosemary oil vs minoxidil 2% for the treatment of androgenetic alopecia: a randomized comparative trial. SKINmed. 2015;13(1):15–21.
2. Oh JY, Park MA, Kim YC. Peppermint oil promotes hair growth without toxic signs. Toxicological Research. 2014;30(4):297–304.
3. Hay IC, Jamieson M, Ormerod AD. Randomized trial of aromatherapy: successful treatment for alopecia areata. Archives of Dermatology. 1998;134(11):1349–1352.
4. Bin Rubaian NF, Alzamami HFA, Amir BA. An overview of commonly used natural alternatives for the treatment of androgenetic alopecia, with special emphasis on rosemary oil. 2024.

These statements have not been evaluated by the Food and Drug Administration. This content is for educational purposes and is not intended to diagnose, treat, cure or prevent any disease.