Magic of Onion Seeds for Hair

HK Vitals

Medically Reviewed By Dr. Aarti Nehra

Dandruff, frizzy hair, dullness, and hair fall; each hair problem poses its own set of challenges. Try out a humble ingredient that works wonders for many of the hair problems – onion seeds. In this blog, we will explore onion seeds and onion seeds benefits for hair health.

What are Onion Seeds?

Onion seeds are also known as Nigella seeds or kalonji seeds. Onion seeds are usually small, black, and angular in shape and rich in a range of nutrients including antioxidants, vitamins, and minerals.

What are the Onion Seeds Benefits for Hair?

We have all heard about the use of onion juice on the hair roots. It is linked to stronger hair roots and faster hair growth. But the benefits of onion seeds for hair extend further. Here’s what onion seeds offer:

Promotes Hair Growth

Onion seeds are rich in compounds namely thymoquinone (TQ), linoleic acid, and oleic acid. Thymoquinone packs antioxidant properties that fight oxidative stress. It is seen as an effective remedy for stress-induced hair loss.

Promotes Shiny and Stronger Hair

Onion seeds have high amounts of sulfur. The mineral is found in amino acids that make up keratin, the key hair protein. The regular use of onion seeds oil therefore helps make up more protein for stronger hair growth. 

Reduces Premature Graying of Hair

Onion seeds pack antioxidants and vitamins in abundance. Nutrients like vitamin C, vitamin B9, vitamin B6, potassium, and several other compounds play a crucial role in the production of melanin, the pigment responsible for hair color. Once the nutrition deficiencies are met, it slows down the process of premature graying.  

Promotes Scalp Health

Onion seeds pack compounds that exhibit antibacterial and antiseptic properties. This makes it an effective remedy for warding off bacterial and fungal growths that trigger dandruff, itchy scalp, and other scalp conditions. 

Reduces Hair Dryness and Dullness

The high sulfur content in onion seeds is known to enhance moisture retention in the hair shaft. This reduces dryness and problems of frizzy hair. It also adds to the natural shine by contributing to a smoother and even texture.  

Natural Conditioner

As the nutrients in the onion seeds strengthen the hair roots and reduce hair breakage, it leads to an improved hair structure. It is a natural conditioner that even tones the hair texture for a conditioned look. 

Balances Scalp pH Levels

Did you know onion seeds are mildly acidic? This helps regulate the pH balance in the scalp. It is seen as an instant cure for increased sebum production and scalp conditions like dandruff and itchy scalp. 

Prevents Hair Breakage and Thinning

The sulfur in onion seeds is important for the formation of hair bonds. This ensures stronger and thicker hair with no breakage or hair thinning. Onion seeds are also seen as an effective remedy for split ends. 

How to Use Onion Seeds for Hair?

Onion seeds oil is an easily available over-the-counter product. It is the oil extracted from onion seeds. You can simply use the oil as-it-is or mix it with coconut oil or almond oil for a gentle hair massage. 

You can also add a few drops of onion seeds oil to a DIY hair mask for hair hydration. The best part of using onion seeds oil is that it is non-greasy and therefore can also be used as a leave-in treatment for hair frizz and dull hair. 


Onion seeds are a natural remedy for a range of hair concerns. In Ayurveda, it is seen as an effective cure for stress-induced hair loss. It is suitable for all hair types and is also effective on color-treated hair. Just go for a gentle head massage to enjoy the extensive onion seeds benefits for hair. 


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