How to Use Cod Liver Oil for Hair Growth? Omega-3 Fatty Acids and Hair Health

Written by Our Editorial Team
Last updated

Cod liver oil has long been used as a supplement to support healthy hair, skin and nails. The essential fatty acids, vitamins and minerals it contains may help boost hair growth. If you're considering using cod liver oil for faster, thicker hair growth, here are some tips on how to use it effectively.

How to Use Cod Liver Oil for Hair Growth

There are two main ways to use cod liver oil for optimizing hair growth:

Take it Orally

One of the most direct ways cod liver oil improves hair is when taken as an oral supplement. Cod liver oil is packed with nutrients that nourish hair follicles from within. To use:

  • Take 1-2 teaspoons of cod liver oil daily, or according to label instructions.
  • Swallow the dose directly or mix with juice to improve palatability.
  • Take with a meal to reduce fishy burps.
  • Choose a reputable brand that is free of impurities.

Use as a Scalp Treatment

Applying cod liver oil directly to the scalp allows the nutrients to be absorbed by the hair follicles. To use:

  • Massage a few drops of cod liver oil into the scalp.
  • Concentrate on areas of thinning or slower growth.
  • Leave on for at least 30-60 minutes.
  • Shampoo hair well afterwards.
  • Use 1-2 times per week.

Why Cod Liver Oil Promotes Hair Growth

Cod liver oil contains a powerhouse combination of fatty acids, vitamins and other beneficial compounds that contribute to improved hair growth and thickness:

Omega-3 Fatty Acids

Omega-3s like EPA and DHA nourish the hair follicles to stimulate faster, healthier growth.

Vitamin A

This vitamin protects the scalp from free radical damage. It also controls production of sebum, an oily substance that moisturizes the scalp.

Vitamin D

Vitamin D works together with the minerals calcium, zinc and magnesium to maintain strong, thick hair and prevent excessive shedding.

Vitamin E

This antioxidant vitamin repairs damage to the follicles while stimulating blood circulation in the scalp.

Other Benefits of Cod Liver Oil

In addition to hair growth, regular cod liver oil use offers other advantages like:
  • Reducing inflammation and dandruff
  • Moisturizing dry hair and scalp
  • Preventing hair loss from nutrient deficiency
  • Thickening thin or brittle strands
  • Balancing hormones related to hair growth

Choosing a Quality Cod Liver Oil

With so many cod liver oil products available, be sure to choose one that offers maximum benefits. Here's what to look for:

  • Cold-pressed processing
  • Wild-caught fish source
  • High EPA and DHA content
  • Added vitamins A and D
  • Low mercury and PCBs
  • Third party purity testing

A reputable manufacturer will provide analysis certificates verifying quality. Avoid buying cod liver oils in bulk bins, as the source is unknown.

Safety and Precautions

For most people, cod liver oil is very safe when used correctly. However, potential side effects can include:

  • Fishy aftertaste
  • Indigestion or heartburn
  • Nausea
  • Headaches
  • Oily skin or breakouts

Don't exceed the recommended dosage. Check with your doctor before using cod liver oil if pregnant, breastfeeding, taking blood thinners, or if you have a medical condition.


Using cod liver oil both topically and as a supplement provides a powerhouse combination of vitamins, minerals and omega fatty acids for hair growth. Just be sure to choose a high-quality oil and take it as directed. Pair it with a balanced diet and hair care routine to help optimize thicker, faster-growing hair.

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Hair Growth Routine | For Men
Hair Growth Routine | For Men
Formulated to combat shedding & signs of balding
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Hair Growth Routine | For Women
Formulated to combat thinning hair & visible scalp

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