7 Natural Oils That Promote Hair Growth (And How to Use Them)

If you're searching for a natural way to support hair growth, look no further than your oil shelf. Essential and carrier oils have been used for centuries to nourish the scalp, strengthen hair, and even stimulate new growth. Whether you're dealing with thinning hair, dryness, or slow-growing strands, incorporating natural oils into your routine can make a significant difference.

Below are 7 of the most effective oils for hair growth, each offering unique benefits—and tips on how to use them properly.

1. Rosemary Oil

Why it works:
Rosemary essential oil is one of the most researched oils for hair regrowth. It increases blood circulation to the scalp, strengthens follicles, and may help block DHT, the hormone linked to hair thinning.

How to use:
Dilute 5 drops of rosemary oil in 2 tablespoons of a carrier oil like olive or jojoba. Massage into your scalp, leave on for 30 minutes, then rinse. Use 3–4 times per week.

2. Castor Oil

Why it works:
Thick and nutrient-rich, castor oil is packed with ricinoleic acid and vitamin E. It helps nourish the scalp, improve blood flow, and promote hair thickness and shine.

How to use:
Warm 1 tablespoon of castor oil and apply it to your scalp using your fingertips. Leave it on for at least an hour—or overnight—before washing it out. Use 1–2 times weekly.

3. Nettle Oil

Why it works:
Nettle is rich in silica, sulfur, and antioxidants that help prevent hair loss and stimulate new growth. It also helps reduce scalp inflammation.

How to use:
Apply nettle-infused oil to the scalp and massage in circular motions. Leave on for 30–60 minutes before rinsing.

4. Black Cumin Oil

Why it works:
Also known as Nigella sativa oil, black cumin oil is rich in thymoquinone, a powerful antioxidant and anti-inflammatory compound that helps soothe the scalp and strengthen follicles.

How to use:
Massage a few drops of black cumin oil directly into the scalp 2–3 times a week. You can also mix it with your shampoo or hair mask.

5. Jojoba Oil

Why it works:
Jojoba oil mimics the natural sebum produced by your scalp, making it ideal for moisturizing without clogging pores. It’s especially good for balancing oil production and promoting a healthy scalp environment.

How to use:
Warm a small amount in your hands and apply to the scalp and hair ends. Leave on for 20–30 minutes before washing.

6. Olive Oil

Why it works:
Olive oil is loaded with antioxidants and vitamins A and E. It deeply nourishes the hair, softens strands, and helps reduce breakage and split ends.

How to use:
Apply warm olive oil to your hair and scalp. Cover with a shower cap for 30–60 minutes, then rinse thoroughly with shampoo.

7. Tea Tree Oil

Why it works:
Tea tree oil has antimicrobial and anti-inflammatory properties that help clear clogged hair follicles and reduce dandruff, promoting better hair growth.

How to use:
Dilute a few drops in a carrier oil like coconut or jojoba and massage into the scalp. Leave on for 15–20 minutes and rinse out. Use 1–2 times weekly.

Hair growth doesn’t have to rely on harsh chemicals or expensive treatments. By incorporating these seven natural oils into your weekly hair care routine, you can support stronger, healthier, and fuller-looking hair—naturally. Whether you prefer a scalp massage or a deep-conditioning oil mask, consistency is key.