Often referred to as “liquid gold,” black seed oil has been valued for centuries for its powerful health and beauty benefits. This nutrient-rich oil from Nigella sativa seeds is loaded with fatty acids, vitamins and antioxidants. According to Trichologist Sara HallachianThese nourishing elements work in harmony to deeply moisturize and revitalize both the scalp and hair, making black cumin oil an extraordinary moisturizer.

Whether you’re looking to boost hair growth or simply maintain healthy, shiny locks, black seed oil offers a natural and effective way to enhance your hair care routine. Below, our experts break down everything you need to know about incorporating black seed oil into your diet.

Benefits of Black Cumin Oil

Moisture

“Black seed oil is a moisture powerhouse,” says Bennett. “It is especially beneficial for curly, curly and textured hair, which often needs more moisture. The oil’s essential fatty acids help lock in moisture, while its vitamin E content repairs and strengthens the hair. It nourishes both the scalp and hair strands, making them healthier. Your hair wants it.” “Ideal for anyone dealing with dryness or damage, whether fine, wavy or coarse.”

As I Am founder and chemist Dr. Ali Syed adds that the research center in Avlon has conducted a comprehensive study on natural oils, including black cumin oil. “Our work, which I share more about in my book Curly Hair bookfound that black seed oil increased hair moisture by about 12 percent in dry climates and by about 15 percent in hot or humid conditions,” she explains.

Supports Hair Growth

Black seed oil is known for its ability to strengthen hair follicles and promote healthy hair growth, largely due to a key ingredient called thymoquinone. This powerful antioxidant has anti-inflammatory properties that can significantly improve scalp health and potentially stimulate hair follicles. “Hair follicles can sometimes experience inflammation, and using something that reduces this inflammation can improve the quality of the hair growing from the follicle, helping to minimize thinning, prevent hair loss, and even promote regrowth,” Hallajian explains.

Improves Scalp Health

Black seed oil is also considered mildly antimicrobial and antifungal, meaning it can help stop the growth of bacteria and mold. Dr. “It’s particularly helpful for dry scalps that may be prone to dandruff,” says Syed.

Adds Shine and Shine

Regular use of black seed oil can add natural shine and luster to your hair, improving its overall appearance. It smoothes the hair cuticle and gives a shiny appearance.

Prevents Premature Graying

The antioxidants in black seed oil may help prevent or slow premature graying by supporting the health of hair follicles and protecting the pigment in hair strands.

Nourishes with Essential Nutrients

Black cumin oil is rich in vitamins A, B and C, which are necessary for general hair and scalp health, as well as minerals such as iron, calcium and potassium.

Protects Against Environmental Damage

The antioxidants in black seed oil help protect hair from environmental stressors such as pollution, UV radiation, and free radical damage, keeping hair healthier and more resilient.

How Can You Include Black Cumin Oil in Your Hair Care Routine?

Pre-Shampoo Care

“For pre-shampoo treatments, let the oil sit on the scalp for 15 to 20 minutes, or leave it on overnight for a more intense moisture boost,” says Bennett. This prevents the hair from drying out during the shampooing process and provides extra moisture.

Add to Your Conditioner

Mix a few drops of black cumin oil into your regular conditioner or deep conditioner. It helps nourish and strengthen the hair strands, making them soft and easier to shape.

Hair Mask

Combine black seed oil with other nourishing oils jojoba or coconut oil. Apply the mixture to your hair from roots to ends. Leave it on for 30 to 60 minutes before washing. This mask hydrates, repairs and strengthens damaged or brittle hair, reducing breakage and split ends.

Scalp Massage

“scalp massages “They allow black seed oil to penetrate deeply into the scalp, stimulating the follicles while delivering nutrients,” says Bennett. Warm a small amount of black seed oil and gently massage it into your scalp with circular movements. This increases blood circulation in the hair follicles and allows nutrients from the oil, such as thymoquinone, to penetrate the scalp, promoting hair growth and improving scalp health.

Unauthorized Treatment

Black seed oil can also be used as a leave-in conditioner to lock in moisture. “Start with a small amount to avoid overdoing the oil and weighing down the hair,” says Hallajian.

Hair Type Considerations

Our experts agree that black cumin oil is generally beneficial for all hair types. It helps lock in moisture for high-porosity hair, making the hair more moist and manageable. For low porosity hair, using smaller amounts as a treatment and rinsing can add shine without weighing down the hair. The important thing is to adjust the application according to your hair type.

Risks and Safety Tips

“When overused, black seed oil can be overwhelming, especially for those with fine or porous hair,” says Bennett. “I recommend starting with just a few drops to avoid buildup. Use sparingly or mix with lighter oils like jojoba or grapeseed for a more even application.”

Some people may experience sensitivity or irritation to black cumin oil. Hallajian recommends doing a patch test before applying it to your scalp. “For those with sensitive skin, it’s best to dilute the oil with a carrier oil, such as rosehip or coconut oil, to minimize the risk of irritation,” she explains.

How Often Should You Use Black Cumin Oil?

Our experts recommend using black cumin oil 2-3 times a week. to increase moisture and promote healthy hair growth without overwhelming your strands. The aim is to maintain balance and ensure that your hair benefits from overload.