Shark Liver Oil: Benefits, Uses, and Safety Guide

If you’ve seen shark liver oil mentioned alongside fish oil or krill oil, you might wonder what makes it different. In plain terms, it’s an oil taken from the livers of certain sharks that contains a mix of omega‑3 fats and a natural compound called squalene. People use it for everything from heart health to skin care, but like any supplement, it has pros and cons.

What Is Shark Liver Oil?

The oil comes mainly from deep‑sea sharks such as the Greenland shark or the dogfish. Its key ingredients are EPA and DHA (the same omega‑3s found in fish), plus a high amount of squalene – a substance that gives the oil a distinctive smell and is also used in cosmetics.

Squalene is what sets shark liver oil apart. It acts as an antioxidant, helping protect cells from damage caused by free radicals. The omega‑3s support normal brain function and help keep blood vessels flexible.

Potential Benefits and Risks

People often take shark liver oil for heart health. The EPA/DHA blend can lower triglyceride levels and may modestly reduce inflammation, which supports a healthier cardiovascular system.

Skin lovers like the squalene content because it moisturizes from within. Some users report softer skin and reduced redness after a few weeks of regular use.

The immune‑boosting reputation comes from animal studies showing that squalene can enhance certain white‑blood‑cell activities. While human data is limited, many choose the supplement during cold season hoping for an extra edge.

Side effects are generally mild but worth noting. High doses can cause digestive upset, like nausea or loose stools. Because shark liver oil is rich in vitamin A, excessive intake may lead to toxicity – especially for pregnant women.

How to Choose a Quality Product

Look for brands that test their oil for contaminants such as heavy metals and PCBs. Third‑party certifications (e.g., USP or NSF) give extra confidence. A clear label should list the exact EPA, DHA, and squalene amounts per serving.

The typical adult dose is one to two softgels a day delivering about 500–1000 mg of combined omega‑3s. Start with the lowest dose and see how your body reacts before increasing.

People with liver disease, bleeding disorders, or those on blood thinners should talk to a doctor first. Kids and pregnant women need medical guidance because of the vitamin A content.

In short, shark liver oil can be a useful addition if you’re after extra omega‑3s and squalene for skin or heart support. Pick a reputable brand, stick to recommended doses, and check with your health provider if you have any underlying conditions. That way you get the benefits without unnecessary risk.