10 Essential Oils to Enhance Hair Growth and Health

Research suggests essential oils like rosemary and peppermint may support hair growth by stimulating blood flow to the scalp and reducing hair loss. While these oils hold promise, it’s crucial to use them properly—diluted with a carrier oil—to avoid unwanted side effects.

1. Lavender Essential Oil

Lavender essential oil may support hair growth in people with alopecia, a condition that causes hair loss. In one study, 44% of participants using a mix of lavender, thyme, rosemary, and cedarwood oils saw hair improvement due to one type of alopecia, compared to 15% in the control group.

Another study found that 75% of participants using lavender, thyme, rosemary, cedarwood, and evening primrose oils experienced hair growth improvement, versus 30% in the placebo group.

2. Peppermint Essential Oil

There are few human studies on peppermint oil for hair growth. However, a study in mice showed that topical use of peppermint essential oil resulted in thick and long hair after four weeks, suggesting potential for treating hair loss in humans.

3. Rosemary Essential Oil

Research suggests rosemary oil may benefit hair health due to its antimicrobial and antioxidant properties. It can enhance circulation around hair follicles, which may help individuals with alopecia.

In comparison with 2% minoxidil, a common hair growth treatment in products like Rogaine, rosemary oil showed similar effectiveness in improving hair growth but caused less scalp irritation.

4. Cedarwood Essential Oil

Cedarwood essential oil has antibacterial, anti-inflammatory, and pain-relieving properties. While research on its impact on hair health is limited, some studies suggest combining cedarwood with oils like lavender may aid in reducing hair loss.

5. Lemongrass Essential Oil

Lemongrass essential oil may help manage dandruff. Studies show a hair tonic with lemongrass oil significantly reduced dandruff within a week, with even greater reduction after two weeks. Concentrations of 5%, 10%, and 15% were effective, with 10% being the most effective.

6. Thyme Essential Oil

Thyme essential oil shows promise in treating dandruff due to its anti-inflammatory, antiviral, antibacterial, and antiseptic properties. One study indicated that thyme oil could stop microbial growth related to dandruff formation.

7. Tea Tree Essential Oil

Research indicates tea tree oil may help address dandruff. A study showed a 5% tea tree oil solution reduced dandruff, with participants in the tea tree oil group experiencing a 41% improvement compared to 11% in the placebo group.

There is evidence that tea tree oil may be beneficial for treating head lice. An older study found that 2% tea tree oil effectively killed head lice after 30 minutes and louse eggs after five days.

8. Ylang-Ylang Essential Oil

Research suggests that ylang-ylang essential oil might assist with scalp psoriasis. Its antimicrobial, anti-inflammatory, and antioxidant properties make it a potential treatment for psoriasis. However, more research is needed to assess long-term safety and effectiveness.

9. Chamomile Oil

Chamomile oil’s antioxidant and anti-inflammatory properties may be beneficial for treating scalp eczema. An animal study involving rats found that when chamomile was delivered in a topical gel carrier, the duration of skin healing decreased twofold compared to chamomile oil applied without the carrier gel.

10. Geranium Oil

Research shows that geranium oil demonstrated hair growth in in vitro (performed in a lab dish or test tube) and in vivo (performed on living organisms) studies. Researchers say this is due to its ability to regulate growth factors and cellular response.

Risks and Potential Complications

The Food and Drug Administration (FDA) does not regulate essential oils, so be careful when using them for hair or other purposes.

Some known risks associated with essential oils include:

People with asthma or allergies are more susceptible to reactions from essential oil inhalation or skin exposure.

How to Use Essential Oils on Your Hair

If you decide to use hair oil, you may be able to find hair products that already contain it, including instructions for use. If you want to use it alone, you may want to seek guidance from a healthcare provider familiar with essential oils first.

Put a few drops of essential oils in a carrier oil or solution before use. Never use them undiluted, as they are highly potent. Consider adding drops to shampoo or conditioner. Test the mixture on a small skin patch first to ensure no reaction.

How to Mix Essential Oils and Carrier Oils

Essential oils are not meant to be used alone. Because their potency is highly concentrated, they are used in tiny amounts in a carrier oil. Common carrier oils used to dilute essential oils include:

To begin, add just a few drops of essential oil to an ounce of a carrier oil. If you do not experience any respiratory or skin-related side effects, you can increase the number of drops you use (up to six drops for sensitive skin and up to 15 drops for regular skin).

More Ways to Stimulate Hair Growth

In addition to natural hair-growth products, like essential oils, the following may encourage your hair to grow:

• Supplements: Vitamin D, vitamin C, zinc, fish oil, or iron supplements may help your hair grow. Biotin (vitamin B7) is essential to hair health and growth.
• Protein: Getting an adequate daily amount of protein, which contains dietary biotin, is essential for producing healthy hair.
• Castor oil: This oil’s anti-inflammatory properties and vitamin E may help reduce hair loss and increase moisture and hair thickness.
• Scalp massage: One study found that hair thickness increases with standard scalp massage.