Hair Growth Oil: Does it Work?

by Colleen Welsch on March 25th, 2022

Hair Growth Oil: Does it Work?

Using oil for hair growth is heavily debated, but certain oils can benefit your scalp and hair. Some benefits are removing dandruff, controlling sebum production, improving scalp circulation, and more. All of which contribute to healthy hair growth.  

Below are the five best hair growth oils. 

1. Essential Oils

Essential oils are extracted from plants and flowers and used for medicinal benefits. Examples of beneficial essential oils for hair are chamomile or rosemary oil.  


  • Essential oils can soothe scalp irritation by reducing inflammation and dandruff. 
  • Essential oils can improve blood circulation on the scalp.
  • Essential oils can soothe your scalp and even help with wound healing.


  • Essential oils are potent and harsh on their own, so they need to be combined with carrier oils. 
  • Some essential oils can also irritate your scalp in the sunlight, so try applying them at night.

2. Castor Oil

Castor oil is pressed from castor seeds, creating a thick yellow liquid. Its benefits for hair are similar to those offish oil and flaxseed oil.


  • Castor oil can moisturize both hair strands and the scalp. 
  • Castor oil is antifungal, so it can help reduce dandruff.
  • Castor oil a natural anti-inflammatory, which can help soothe an irritated scalp.
  • Castor oil contains omega-6 fatty acids, which can help prevent hair loss.


  • Castor oil is quite viscous and thick, so it can make your hair feel greasy and cause hair felting
  • Since castor oil can cause buildup on the scalp, use it only in small amounts.

3. Coconut Oil

Coconut oil, a thick oil made up of fatty acids, is typically used in cooking or to moisturize skin. Some also use it as a hair growth oil. 


  • Coconut oil can prevent protein loss in hair, which allows the hair to grow stronger.
  • Coconut oil has antibacterial and antifungal properties, which can help defend against bacteria and dandruff.
  • Coconut oil can help control split ends, helping your hair grow longer.
  • Coconut oil moisturizes the scalp and softens hair.
  • Coconut oil can protect against heat damage from heating tools and UV rays.


  • Since coconut oil prevents protein loss, it may deter moisture from getting into your locks.
  • Coconut oil is quite thick and will tangle your hair if applied in large amounts.
  • Coconut can also cause buildup if you use too much and block your follicles.

4. Lavender Oil

Lavender oil is one of the oldest essential oils used for medicinal properties and as a hair growth oil. 


  • Lavender oil may help stimulate hair growth by increasing the number of active follicles on your scalp.
  • Lavender oil can provide anti-inflammatory properties to your scalp.
  • Lavender oil has antimicrobial properties that can help create a healthy environment on your head.
  • Stress can sometimes lead to hair loss, and the soothing scent of lavender oil can reduce this. 


  • Since lavender is an essential oil, if it’s not diluted with a carrier oil, it can cause skin irritation.
  • Lavender may also cause allergic reactions to the skin.

5. Tea Tree Oil

Tea tree oil is an essential oil used for its anti-inflammatory and antifungal properties. It also produces a soothing menthol aroma, like peppermint oil.


  • Tea tree oil can soothe an itchy scalp by clearing away excess sebum and dead skin.
  • Tea tree oil is antimicrobial, keeping your scalp healthy and protected against bacteria.
  • Tea tree oil is moisturizing for your scalp. 
  • Tea tree oil can also remove the buildup of hair products, allowing for healthy growth.


  • Because tea tree oil contains a potent concentration of plant oil, it may irritate sensitive skin types. Side effects include:
  • Inflammation
  • Dry skin
  • Itchiness
  • Burning

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The best hair care starts internally. Viviscal Hair Growth Supplements are a clinically proven solution for men and women suffering from fine or thinning hair to achieve thicker, fuller, and healthier hair in 3-6 months.*


To learn more about the benefits of hair growth oil, read our guides on the best oils for thicker hair and the best oils for hair loss prevention.


What’s your favorite hair growth oil to use? Tell us in the comments! 

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

1Mori, HM., Kawanami, H., Kawahata, H. et al. Wound healing potential of lavender oil by acceleration of granulation and wound contraction through induction of TGF-β in a rat model. BMC Complement Altern Med 16, 144 (2016).

2Le Floc’h C, Cheniti A, Connétable S, Piccardi N, Vincenzi C, Tosti A. Effect of a nutritional supplement on hair loss in women. J Cosmet Dermatol. 2015 Mar;14(1):76-82. doi: 10.1111/jocd.12127. Epub 2015 Jan 8. PMID: 25573272.

3Maduri V R, Vedachalam A, Kiruthika S. “Castor Oil” – The culprit of acute hair felting. Int J Trichol 2017;9:116-8

4Rele AS, Mohile RB. Effect of mineral oil, sunflower oil, and coconut oil on prevention of hair damage. J Cosmet Sci. 2003 Mar-Apr;54(2):175-92. PMID: 12715094.

5Lee, B. H., Lee, J. S., & Kim, Y. C. (2016). Hair Growth-Promoting Effects of Lavender Oil in C57BL/6 Mice. Toxicological research, 32(2), 103–108.

6Choi S, Zhang B, Ma S, Gonzalez-Celeiro M, Stein D, Jin X, Kim ST, Kang YL, Besnard A, Rezza A, Grisanti L, Buenrostro JD, Rendl M, Nahrendorf M, Sahay A, Hsu YC. Corticosterone inhibits GAS6 to govern hair follicle stem-cell quiescence. Nature. 2021 Apr;592(7854):428-432. doi: 10.1038/s41586-021-03417-2. Epub 2021 Mar 31. PMID: 33790465.