Fish oil has various benefits for hair. Let us explore them in the following section.

How Does Fish Oil Benefit Hair?

1. Stimulates Hair Growth

Mackerel is a fatty fish rich in nutrients. In a mice study, mackerel-derived fermented fish oil increased the proliferation of dermal papilla cells, thereby stimulating hair growth. The oil prolonged the anagen phase of the hair follicle growth and increased the hair shaft’s life period (2).

2. Improves Scalp Health

Fish oil has antibacterial properties (3). The oil may help keep the scalp clean and improve hair and scalp health. It helps protect skin against aging and dermatitis. It also may promote wound healing (4).  

3. Reduces Hair Loss

Omega-3s were also found to inhibit 5-alpha reductase, which produces the hormone that causes hair loss. The fatty acids also have anti-inflammatory properties that help reduce hair loss and improve hair health in terms of hair strength and volume (6). These are a few of the important benefits of fish oil. In the following section, we will look at how you can use it for hair growth.

How Do You Use Fish Oil For Hair Growth?

1. Include Fish In Your Diet

Fish is rich in omega-3 fatty acids that help improve hair health. The recommended fish include mackerel, herring, salmon, sardines, albacore tuna, and lake trout. Try adding fish oil to your recipes and smoothies. You may want to check if you are allergic to fish oil before adding it to your diet.

2. Take Fish Oil Supplements

You can also choose fish oil capsules or pills available on the market. A health professional can guide you properly about the correct dosage.

3. Use A Hair Mask With Fish Oil

Fish oil is not often used topically because of its strong odor. But anecdotal evidence suggests that applying a blend of olive oil and fish oil to your hair offers nourishment and moisturization. However, scientific studies are scarce in this aspect.

How Much Fish Oil Should You Take?

A dosage of 250–500 mg of omega-3 fatty acids per day should suffice (9). The dosage also depends on an individual’s needs. If you have any specific health condition, consult your doctor before taking a fish oil supplementation.

Precautions

Intake of fish oil and its supplements are generally considered safe. However, fish may also have the risk of mercury contamination (10). In this case, fish oil supplements from a reputed brand are preferable. Pregnant and lactating women may also benefit from fish oil supplements. When on supplements, stick to the prescribed dosage. Overconsumption of fish oil, as per anecdotal evidence, may lead to headache, indigestion, nausea, rashes, bad breath, and diarrhea. If you have any medical conditions, please check with your doctor before adding fish oil to your diet. Can I put fish oil directly on my hair? Yes, you can apply fish oil directly to your hair. But it has a strong, unpleasant odor. Is fish oil good for thinning hair? Fish oil contains omega-3 fatty acids, and consuming it may increase hair density (5). It stimulates hair growth, reduces hair loss, and improves your scalp and hair health. Can I take biotin and fish oil together? Yes. You can take biotin and fish oil together. However, consult your doctor before taking these supplements as they may cause nausea and other side effects.

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