Can Black Seed Oil Help Hair Growth?

Quick Summary: Black Seed Oil & Hair Growth

Black Seed Oil for Hair: Emerging as a key player in natural hair care, black seed oil from the Nigella sativa plant offers a potential remedy for hair loss, backed by centuries of traditional use and recent scientific studies.

Thymoquinone (TQ): The oil’s effectiveness is largely attributed to TQ, a chemical which helps balance the immune system, reduce inflammation, and protect against oxidative stress, contributing to a healthier scalp and hair.

Research Insights: Clinical research supports black seed oil’s role in enhancing hair growth, showing it can significantly reduce hair fall, increase hair density, and soothe scalp psoriasis without side effects.

Application Methods: Black seed oil can be applied directly to the scalp, used in hair masks, added to shampoos, or even incorporated into your diet for comprehensive benefits.

Key Takeaway: While black seed oil stands out as a versatile, natural option for hair growth and health, it is essential to consult healthcare professionals to ensure it fits your specific health needs and hair care goals.

This article aims to shed light on black seed oil, focusing on its potential benefits for hair growth, the science behind its effectiveness, and practical tips for its use. Whether you’re new to the concept or seeking more detailed insights, our clinic will guide you through the key aspects of black seed oil as a potential solution for hair loss. 

What Is Black Seed Oil? 

Black seed oil (also known as Nigella Sativa oil or black cumin seed oil) is an ancient, traditional therapy that has been used in the cultures of the Middle East, Africa, and South Asia for centuries. 

This oil is extracted from the small seeds of the Nigella sativa plant and is rich in antioxidants, anti-inflammatories, and essential fatty acids. Thymoquinone is one of the most potent compounds in this plant and its key active component, and has been extensively studied for its therapeutic effects.

Maintaining scalp health and its benefits in helping reduce inflammation are among the many reasons people use black seed oil. However, does it promote hair growth? It has played a pivotal role in treating a variety of conditions affecting different body systems, including asthma, high blood pressure, and inflammation.

Black seed oil is renowned not just for its internal benefits, but also for its external applications, such as treating skin issues like blisters, eczema, and soothing swollen joints, thanks to its antiseptic and local anaesthetic properties.²

Can Black Seed Oil Boost Hair Growth?

There is limited but positive evidence regarding the role of black seed oil in hair growth. In a small clinical trial, the topical application of a lotion containing 0.5% black seed oil increased the density and thickness of the affected participants during a 3-month intervention in individuals with telogen effluvium (a term for temporary hair loss most commonly caused by stress or sudden illness).¹

In another clinical study, participants applied a herbal hair oil containing black seed oil to their entire scalp twice daily for 4 weeks. Results showed significantly greater hair growth improvement compared with coconut oil alone.²

Although such studies are promising, they have been limited in size, and further research is needed to draw stronger conclusions.

Who Can Benefit Most from Using Black Seed Oil?

Black seed oil can have a potential benefit for people experiencing hair or scalp problems, such as:

• Telogen effluvium: Sudden shedding triggered by stress ⁷, dietary deficiencies, or illnesses

• Scalp problems: E.g. dandruff, eczema, mild scalp psoriasis.

• Dry or brittle hair: Where added moisture can help improve softness and reduce breakage.

The black seed oil, however, is not a DHT blocker and may not work as well as medications like topical finasteride when it comes to androgenetic alopecia⁸ (genetic pattern baldness), particularly in men or postmenopausal women. 

Although it can reduce inflammation, keep the scalp healthy, and nourish the hair, it does not directly address the hormonal processes underlying this type of hair loss.

Understanding Hair Loss and How Black Seed Extract Can Help 

Hair loss manifests in various forms. Here’s a brief overview of the main types of hair loss and how TQ, the active component in black seed oil, might offer a natural solution^2,8:

1. Androgenetic Alopecia: A condition linked to genetics, inflammation, and oxidative stress, where TQ’s anti-inflammatory and antioxidant actions can play an important role in soothing the scalp and potentially slowing hair loss.³

2. Alopecia Areata: This autoimmune condition occurs when immune cells target hair follicles directly, destroying them. TQ helps by reducing the overactivity of these immune cells, which in turn helps prevent the destruction of hair follicles. 

3. Telogen Effluvium: Often triggered by stress, illness, or trauma, this temporary type of hair loss causes hair follicles to enter their resting phases earlier. TQ supports scalp health, aiming to stabilise the hair cycle, and thus improving hair density and growth.⁶

4. Tinea Capitis: Characterised by itchy, patchy hair loss due to a fungal infection, TQ’s antifungal properties can help relieve symptoms and manage this condition.⁹

5. Trichotillomania: Compulsive hair pulling due to stress or psychological factors. TQ’s potential in enhancing mood and reducing anxiety might indirectly benefit those facing this challenge.

6. Anagen Effluvium: Rapid hair loss resulting from medical treatments, such as chemotherapy. TQ’s role in promoting the health and balance of our cells and immune system may aid in the recovery and regrowth of hair post-treatment.¹⁰

Given its potential benefits, looking into black seed oil as a natural solution for hair loss seems promising. We’ll dive deeper into how to use it effectively in the upcoming sections.

How Do You Use Black Seed Oil for Hair Growth Effectively?

There are a few different ways to use black seed oil, depending on what you want to achieve:

• Scalp Massage

Use a few drops of black seed oil to stimulate the scalp. Gently massage the areas for 5 to 10 minutes to increase blood flow and help the oil penetrate the follicles.

• Hair Mask

Blend black seed oil with carrier oils such as coconut, castor, or jojoba oil. Generously apply the root-to-tip and leave it on for 30-60 minutes, then wash it off.

•  Leave-In Treatment

Apply sparingly to the ends of dripping wet hair, and frizz and split ends will be minimised.

• In Shampoo or Conditioner

Add a dash or two to your standard shampoo or conditioner to easily boost its nutrients.

• Oral Supplements

Capsules containing black seed oil can also be used; however, it is best to consult a healthcare professional before consuming them so that they can provide suggestions that may suit you best.

Are There Any Side Effects or Risks with Black Seed Oil?

In topical use, the black seed oil is safe for most individuals on the scalp. Nevertheless, similar to all natural medicines, it can trigger unpleasant reactions in some individuals.

Side Effects:

• Allergy or skin inflammation: This can cause redness, itchiness, or burning after application, which may result from sensitive skin or from using the oil undiluted.

• Existing scalp conditions can be exacerbated: Constant use or high doses of black seed oil can aggravate conditions such as eczema and seborrheic dermatitis.

• Forehead or hairline breakouts: Applying black seed oil too close to the face can clog pores and trigger breakouts in some acne sufferers.

Using Black Seed Oil Safely:

• To minimise irritation, always use it as a diluted mixture (mixed with a carrier oil, such as coconut or jojoba oil).

• We always advise performing a patch test before using any new product. You can do this by applying a small amount of the diluted oil to a small area of skin, such as the inner forearm or behind the ear, and waiting 48 hours to check for any signs of irritation or discomfort.

• Itching, flaking, and reddening may be signs of adverse effects; discontinue use at once.

Caution Oral Use:

Although black seed oil supplements exist, taking the oil orally can cause digestive discomfort and may lower blood sugar levels. It can also interact with certain medications, including those used to treat diabetes and high blood pressure.^9,10

We’d always advise speaking with your GP or healthcare provider before taking black seed oil internally, especially if you are pregnant, breastfeeding, have a medical condition, or take regular medication.

How Long Does It Take to See Results from Black Seed Oil?

The operative word is consistency. Between 4 and 12 weeks, most users begin to notice a difference, such as less shedding and hair that is shinier and softer. To see hair regrowth, possibly due to temporary causes of hair loss, the period of regular application may take 3 to 6 months.

Notably, the outcomes will differ depending on the cause of hair loss, lifestyle, and the ultimate hair care regimen.

Can Black Seed Oil Be Combined with Other Hair Loss Treatments Like Minoxidil or Finasteride?

Yes. Black seed oil can generally be used alongside conventional therapies, such as minoxidil ¹¹ or finasteride ¹². It has the potential to relieve irritation caused by minoxidil while providing some support to overall scalp health. 

Nonetheless, it is not intended to substitute for diagnosis-based treatment, particularly for genetic hair loss. Instead, think of it as an adjunct to a medically directed plan.

What Do Experts Say About Black Seed Oil for Hair Growth?

Most hair experts agree that black seed oil alone hasn’t been studied enough to prove it can make hair grow back on its own. It may help with scalp health, but it shouldn’t be relied on as a magic cure for hair loss.

Sometimes, experts suggest it as a natural and supportive treatment, especially for improving scalp conditions, reducing mild inflammation, and strengthening hair shafts.

Black Seed Oil and  Hair Growth FAQs

1. Can black seed oil stop hair loss?

It can help curb hair loss caused by inflammation or an unhealthy scalp, but there’s no evidence that it stops hormonal hair loss.

2. Does black seed oil work for men’s hair loss?

It is likely to maintain a healthy scalp, but it does not inhibit DHT¹³, which is the main culprit of male pattern baldness.

3. Can I use black seed oil if I have colored or chemically treated hair?

Yes. Dry and damaged hair could benefit from its moisturising properties. Try a patch first, though.

3. Does black seed oil help with grey hair?

It is anecdotally said to reduce greying because of its antioxidant properties, but there is no scientific evidence that it can prevent or reverse grey hair.

Conclusion

Black seed oil can be a helpful natural addition to a scalp-care routine. While it may help reduce shedding and support healthier, stronger strands, it is not a proven treatment for regrowing hair, especially in cases of genetic or hormonal hair loss.

Black seed oil is best used as an adjunct to address hair loss. However, you will likely achieve the best outcomes by using it as part of a comprehensive, holistic approach, which includes a balanced diet, stress management, and a consistent haircare routine. For individuals experiencing ongoing or significant hair loss, diagnosis-based treatments and medical guidance remain essential.

References

1. Rossi A, Priolo L, Iorio A, et al. Evaluation of a therapeutic alternative for telogen effluvium: a pilot study. J Cosmetics, Dermatol Sci Appl. 2013;3:9–16. Available from: https://www.researchgate.net/publication/276493673
   
2. Taher M, Sheikh H. Formulation and finding out the efficacy of the herbal hair oil over simple coconut oil (purified) – a formulation and clinical study in Bangladesh. Int J Pharm Sci Res. 2018;5(5):1801–1805. Available from: https://www.researchgate.net/publication/328353340
   
3. Aljabre SHM, Alakloby OM, Randhawa MA. Nigella sativa (black seed) oil as a topical treatment for Staphylococcus aureus infections. Int J Dermatol. 2005;44(3):251–5. Available from: https://pubmed.ncbi.nlm.nih.gov/15787814/
   
4. Khan MA, Afzal M. Chemical composition of Nigella sativa Linn.: Part 2. Recent advances. Saudi Pharm J. 2016;24(4):463–72. Available from: https://pubmed.ncbi.nlm.nih.gov/27298527/
   
5. Owolabi MS, Lawal OA, Ibraheem O, Olatunji LA. Antioxidant and anti‑inflammatory activities of Nigella sativa seed oil. J Herbs Spices Med Plants. 2014;20(3):240–50. Available from: https://www.tandfonline.com/doi/abs/10.1080/10496475.2013.857653
   
6. Ghonime M, Eldomany R, Abdelaziz A, Soliman D. Protective effect of thymoquinone against oxidative stress in scalp skin. J Dermatolog Treat. 2019;30(3):262–8. Available from: https://pubmed.ncbi.nlm.nih.gov/29692299/
   
7. Treatment Rooms London. Does stress cause hair loss? [Internet]. Treatment Rooms London; c2025 [cited 2025 Nov 25]. Available from: https://www.treatmentroomslondon.com/hair-loss/does-stress-cause-hair-loss/
   
8. Treatment Rooms London. Male pattern baldness. [Internet]. Treatment Rooms London; c2025 [cited 2025 Nov 25]. Available from: https://www.treatmentroomslondon.com/hair-loss/male-pattern-baldness/

9. Maideen, N. M. P., Balasubramanian, R., & Ramanathan, S. (2021). Nigella Sativa (Black Seeds), A Potential Herb for the Pharmacotherapeutic Management of Hypertension – A Review. Current cardiology reviews, 17(4), e230421187786. https://doi.org/10.2174/1573403X16666201110125906 

10. Maideen N. M. P. (2021). Antidiabetic Activity of Nigella Sativa (Black Seeds) and Its Active Constituent (Thymoquinone): A Review of Human and Experimental Animal Studies. Chonnam medical journal, 57(3), 169–175. https://doi.org/10.4068/cmj.2021.57.3.169
    
11. Treatment Rooms London. Oral Minoxidil: What you need to know. [Internet]. Treatment Rooms London; c2025 [cited 2025 Nov 25]. Available from: https://www.treatmentroomslondon.com/hair-loss/oral-minoxidil-what-you-need-to-know/
    
12. Treatment Rooms London. A guide to Finasteride for hair loss. [Internet]. Treatment Rooms London; c2025 [cited 2025 Nov 25]. Available from: https://www.treatmentroomslondon.com/hair-loss/guide-to-finasteride-for-hair-loss/
    
13. Treatment Rooms London. DHT and its role in hair loss. [Internet]. Treatment Rooms London; c2025 [cited 2025 Nov 25]. Available from: https://www.treatmentroomslondon.com/hair-loss/dht-and-role-in-hair-loss/