Borage seed oil is pressed from the seeds of Borago officinalis, a plant you might know as borage or starflower. Folks like this oil mostly for its high gamma-linolenic acid (GLA) content, which is a type of omega-6 fatty acid.
GLA is thought to help the body manage inflammation and support skin health. That’s a big reason it’s so popular in wellness circles.
Borage seed oil mainly supports skin health and may help ease inflammation because it provides a rich source of GLA. People reach for it to deal with dry or irritated skin, joint discomfort, and hormonal shifts like PMS or menopause.
Some use it on their skin, while others prefer capsules. There’s no single way to take it.
Just like any supplement, it’s not all upside. Mild side effects can happen, and if you’ve got liver issues or take blood thinners, it’s smart to talk to a doctor first.
Knowing how it works can help you figure out if borage seed oil really fits your needs—or if it’s just another bottle on the shelf.
Key Takeaways
- Borage seed oil is from Borago officinalis and has a lot of GLA.
- It might support skin health and help manage inflammation.
- If you’re considering it, use the right dose and get medical advice if you have health conditions.
Composition and Nutritional Profile
Borage seed oil is pressed from the seeds of Borago officinalis, also called starflower. What makes it stand out is the high GLA content, plus other omega-6 fatty acids and a few nutrients on the side.
Key Fatty Acids: GLA, Linoleic Acid, and Oleic Acid
The main thing borage oil is known for? Its gamma-linolenic acid (GLA). GLA is an omega-6 fatty acid that the body can turn into compounds that support healthy inflammation response and skin.
Most borage oil has about 18–24% GLA. That’s a lot more than most plant oils, making it a top pick for GLA supplements.
It also includes:
- Linoleic acid (LA) – usually 35–40%
- Oleic acid – around 15–20%
- A bit of palmitic, stearic, and a few other fatty acids
Linoleic acid, another omega-6, is a building block for GLA in the body. Oleic acid is a monounsaturated fat—think olive oil—that’s good for heart health and helps balance the oil’s fatty acid mix.
High-quality borage oil is refined to remove pyrrolizidine alkaloids. These natural plant compounds aren’t safe for the liver, so proper processing is a must.
Comparing GLA Sources: Borage vs Evening Primrose
Borage and evening primrose oil both give you GLA, but not in the same amounts. Borage seed oil usually packs two to three times more GLA than evening primrose oil.
Evening primrose oil is about 8–10% GLA. Borage oil? Often 18–24%. So, you need less borage oil to get the same GLA dose.
Because of this, borage oil is often chosen for supplements aimed at skin, joints, or hormonal support. Sometimes, it’s even combined with fish oil or other omega-3s to balance things out.
Both oils come from seeds, but different plants. Borage comes from Borago officinalis; evening primrose is from Oenothera biennis. The choice really depends on your GLA needs and the product.
Extraction Methods and Types
To get borage oil, manufacturers use dried borage seed and a few extraction methods. The main ones are:
- Cold pressing (mechanical extraction)
- Solvent extraction
- Sometimes a mix of both
Cold-pressed oil is made with pressure and no high heat. This helps protect the fragile fatty acids, like GLA.
Solvent extraction can pull out more oil, but you have to refine it well to get rid of solvent leftovers. Good brands will test for purity and safety.
You’ll find borage oil as a liquid or in softgel capsules. Most products use refined oil so that pyrrolizidine alkaloids are gone and the fatty acids stay stable.
In the end, people want borage oil for its steady GLA content and as a strong plant source of omega-6s.
Anti-Inflammatory and Immune Effects
Borage seed oil from Borago officinalis is loaded with gamma-linolenic acid (GLA), an omega-6 fatty acid that’s known for its anti-inflammatory effects. There’s a lot of research on how GLA impacts inflammation, joint problems like rheumatoid arthritis, and even severe lung issues such as ARDS.
GLA’s Role in Inflammation
Borage oil is one of the best plant sources for gamma-linolenic acid (GLA). The body turns GLA into dihomo-gamma-linolenic acid (DGLA).
DGLA then helps make substances that can dial down inflammation. It might lower certain compounds linked to swelling and pain, like leukotrienes and inflammatory cytokines.
That’s why people call borage oil anti-inflammatory. GLA might also tweak how immune cells behave by changing the fatty acid balance in cell membranes.
This has sparked interest in borage oil for inflammation-driven conditions, including rheumatoid arthritis and PMS. But honestly, how well it works can depend on your genes, dose, and what else you’re eating.
Potential Benefits for Rheumatoid Arthritis
Rheumatoid arthritis is an autoimmune disease that brings joint pain, stiffness, and swelling. The immune system attacks the joints, which means chronic inflammation.
Some clinical studies say borage seed oil may reduce joint tenderness and swelling in people with rheumatoid arthritis. Folks in these trials who took GLA-rich oils noticed some relief in pain and morning stiffness.
There’s also research showing that borage oil, combined with fish oil, might help blood lipid levels in people with rheumatoid arthritis. Still, the evidence is mixed, and it’s not a substitute for prescription meds.
Safety matters, too. Using borage oil long-term could be risky for the liver if the product isn’t certified free of toxic pyrrolizidine alkaloids.
Impact on Acute Respiratory Distress Syndrome (ARDS)
Acute respiratory distress syndrome (ARDS) is a serious lung problem that leads to severe inflammation and low blood oxygen. It often pops up after infections, trauma, or sepsis.
Researchers have tested formulas that mix GLA from borage oil with other fatty acids, like those in fish oil, for people with ARDS. The hope is to calm lung inflammation and help with oxygen levels.
Some studies found better oxygen and fewer days on ventilators with these special nutrition formulas. They’re designed to change the way the lungs handle inflammation.
But, honestly, the results are all over the place. Not every study shows a clear benefit. ARDS is still a critical illness, and borage oil is just a small piece of the puzzle in certain hospital settings.
Applications for Skin Health
Borage seed oil is packed with gamma-linolenic acid (GLA), which helps the skin’s barrier and keeps inflammation in check. Research and real-world use focus on eczema, barrier repair, and stopping moisture loss. You’ll see it in both topical and oral products.
Eczema and Atopic Dermatitis
People turn to borage oil for eczema because of its high GLA content. The body uses GLA to make anti-inflammatory compounds. Those with atopic dermatitis often have low levels of certain fatty acids in their skin, which weakens the barrier and makes irritation worse.
When you put borage seed oil on the skin, it can help restore lipids in the outer layer. That might mean less dryness, scaling, and itching in atopic eczema. Some studies show modest improvement in redness and rough patches, but results are hit or miss.
Oral GLA supplements have also been tested for eczema. Some trials found less itching and less need for steroid creams, while others didn’t see much change. It really varies based on dose, how long you use it, and your overall health.
Borage seed oil isn’t a cure for eczema. It’s more of a sidekick to regular treatments like moisturizers and prescribed creams.
Seborrheic Dermatitis and Neurodermatitis
Seborrheic dermatitis shows up as red, flaky patches, usually on the scalp or face. Inflammation and a weak skin barrier are big factors. Borage seed oil might help calm things down with its anti-inflammatory fatty acids.
Using it topically can soften flakes and help with dryness. Its lightweight texture means it soaks in fast and doesn’t leave a heavy feel. That’s handy for the scalp, where thick ointments can be annoying.
Neurodermatitis (lichen simplex chronicus) comes from repeated scratching. The skin thickens and the itch just doesn’t quit. By improving lipids and soothing irritation, borage seed oil could help break the itch–scratch cycle.
There’s not a ton of evidence for these uses. Most dermatologists see borage seed oil as a backup, not a main treatment for these skin disorders.
TEWL and Skin Barrier Function
Transepidermal water loss (TEWL) is just a fancy way to measure how much water escapes your skin. High TEWL means your skin barrier is weak.
Borage seed oil gives you GLA and other fatty acids that build up the lipid layer in your skin’s outer shell (the stratum corneum). This layer acts like a seal, keeping water in.
A stronger barrier means:
- You keep more moisture
- Skin is less sensitive to irritants
- Flaking and tightness go down
Using borage oil in creams or lotions regularly can help repair the barrier. Of course, results depend on how often you use it and what else is in the product.
Topical vs Oral Use
You’ll find borage seed oil in topical products and oral supplements. Each works a bit differently.
Topical use targets the skin barrier right where you need it. It helps restore surface lipids and fights dryness in specific spots. Many dermatologists suggest starting with creams or lotions that have borage seed oil for local symptoms.
Oral use delivers GLA through your bloodstream. The body uses it in cell membranes, including skin cells. This might be better for people with skin problems all over.
Before you start oral supplements, talk to a healthcare provider. They can interact with meds and aren’t right for everyone.
Hormonal, Neurological, and Other Health Impacts
Borage seed oil from Borago officinalis is rich in gamma-linolenic acid (GLA), an omega-6 fatty acid. Scientists have looked at its effects on hormone symptoms, brain health, heart function, and metabolism.
Premenstrual Syndrome and Menopause
Borage oil is a source of gamma-linolenic acid (GLA). The body turns GLA into prostaglandin E1 (PGE1).
PGE1 plays a role in controlling inflammation and might affect hormone-related symptoms.
Some research hints that GLA could ease some common premenstrual syndrome (PMS) issues. We’re talking about things like breast tenderness, mood swings, and bloating.
GLA might work by dialing down inflammatory signals that cause pain and swelling.
During menopause, some women notice benefits too. Hormone changes at this stage can bump up inflammation and joint aches.
Since GLA supports anti-inflammatory pathways, borage seed oil might help with mild joint pain and skin dryness.
Still, the evidence is a bit all over the place. Not every study shows clear benefits, and results depend on the dose and the person.
Most supplements come as softgels with standardized GLA levels.
Potential for Seizure Risk
Borage oil can affect brain chemistry, so there are some concerns about seizures for certain people.
There have been reports linking GLA-rich oils to a lower seizure threshold, especially in people with seizure disorders.
This risk seems higher for folks taking medications that impact brain activity, like some antidepressants or antipsychotics.
Unrefined Borago officinalis products might have small amounts of pyrrolizidine alkaloids, which can harm the liver and possibly mess with how drugs are processed.
Most commercial supplements get rid of these compounds, but product quality really matters.
If you have epilepsy or a seizure history, it’s best to check with a healthcare professional before trying borage seed oil.
Choosing the right product and sticking to the recommended dose is important.
Cardiovascular and Metabolic Effects
Borage seed oil is rich in omega-6 fatty acids, mainly GLA. The body uses GLA to make compounds that help manage inflammation and blood vessel tone.
Some studies say GLA may help with healthy circulation by relaxing blood vessels and improving blood flow.
That could be useful for people with mild inflammatory conditions affecting the heart or blood vessels.
There’s also early research suggesting borage oil might support insulin function and lower inflammation tied to metabolic stress.
But honestly, the evidence is pretty limited and shouldn’t replace standard treatments.
If you’re on blood-thinning medications, be careful. Borage oil might increase bleeding risk if combined with anticoagulants.
Getting medical advice and monitoring helps avoid problems.
Safety, Side Effects, and Precautions
Borage seed oil can sometimes upset your stomach or trigger allergic reactions. Certain products might also contain plant chemicals that can hurt the liver or affect bleeding.
Pyrrolizidine Alkaloids and Liver Damage
Borago officinalis naturally makes chemicals called pyrrolizidine alkaloids (PAs). These can cause serious liver damage if taken by mouth in large amounts.
The highest PA levels are in borage leaves and flowers, which some people use in tea.
Borage seed oil might have small amounts of PAs, though many commercial oils are processed to remove them.
Long-term exposure to PAs can lead to liver swelling, scarring, or even liver failure in bad cases.
People with liver disease should steer clear of products that might have PAs.
When picking a supplement, look for labels that say “PA-free” or “certified free of pyrrolizidine alkaloids.”
Independent testing groups sometimes check for purity, but the FDA doesn’t approve borage seed oil for safety.
Pregnant and breastfeeding women should skip non-certified products. Some plant compounds can pass into breast milk, and there just isn’t enough safety data.
Bleeding, Surgery, and Drug Interactions
Borage seed oil contains gamma-linolenic acid (GLA), which is an omega-6 fatty acid. GLA can affect how the body manages inflammation and blood clotting.
Because of this, borage seed oil might raise the risk of bleeding for some people. If you’re taking blood thinners like warfarin, aspirin, or other antiplatelet drugs, use caution.
Doctors usually recommend stopping borage seed oil at least two weeks before surgery. This helps lower the risk of excess bleeding.
There’s also a possible link between high GLA doses and seizures, especially in people on certain medicines that lower the seizure threshold.
Anyone with a seizure disorder should talk to a health professional before using it.
Research on drug interactions is still pretty limited. It’s smart to share a full list of your medicines and supplements with your clinician before starting starflower oil.
General Side Effects
The most common side effect of borage seed oil is upset stomach. Nausea, bloating, indigestion, or loose stools can happen.
Allergic reactions are possible. Things like rash, itching, face or throat swelling, wheezing, or dizziness may occur.
If you get a severe reaction, seek emergency care right away.
Some people also mention headaches or mild digestive discomfort. Side effects can vary since herbal products contain different active compounds.
Quality really depends on the brand. How the plant is grown, processed, and stored can change the final product.
To lower risk, you should:
- Use the dose listed on the label
- Don’t take extra doses
- Store the oil in a cool, dry spot
- Keep it away from kids
If you notice any weird symptoms, stop using it and call your doctor.
Usage Guidelines and Regulatory Considerations
Borage seed oil comes in several supplement forms. It needs to meet certain quality and labeling standards.
Before using it, check the dosage range, extraction method, and regulatory status.
Supplement Forms and Dosage
You’ll find borage oil in softgels, liquid oils, and blended capsules. Most use oil pressed from the seeds of Borago officinalis.
Labels often show the amount of gamma-linolenic acid (GLA), the main active fatty acid.
Typical daily doses range from 500 mg to 3,000 mg of borage seed oil, divided into two or three servings.
Many products standardize the oil to about 20–24% GLA, so check for both total oil and GLA content on the label.
Taking it with food usually helps reduce stomach upset.
Pregnant or breastfeeding women and people on blood thinners should talk to a health professional before use.
Clinical studies, like those in PMC, use controlled doses, so matching those amounts might give more consistent results.
Quality, Certification, and Labeling
Good borage seed oil starts with clean, dry seeds from Borago officinalis. The oil is extracted by cold pressing or other approved methods, then refined to get rid of impurities.
Some refined oils add antioxidants to keep them fresh.
A big safety concern is pyrrolizidine alkaloids (PAs). These naturally show up in parts of the borage plant but shouldn’t be in the finished oil.
Reputable companies test batches to make sure PA levels stay below limits.
Look for:
- A clear GLA percentage on the label
- Lot number and expiration date
- Third-party testing or certification
- Compliance with local labeling laws (like CLP rules in the EU)
Some products may also have organic or COSMOS certification if they meet certain sourcing standards.
Legal Status and Consumer Advice
In most countries, borage oil is a dietary supplement or natural health product. It doesn’t go through the same approval process as prescription drugs, but it still has to follow rules for safety, labeling, and marketing.
Companies can’t claim that borage seed oil cures or treats diseases unless it’s formally approved as a drug.
Labels should stick to structure or function claims, like supporting skin health.
Consumers should:
- Buy from trusted brands
- Avoid products with vague sourcing
- Store capsules in a cool, dark spot
- Tell a healthcare provider about any side effects
It’s also a good idea to check local regulations, since rules and allowed claims can vary by country.
Frequently Asked Questions
Borage seed oil comes from the seeds of Borago officinalis. People use it as a supplement for skin and joint support, and sometimes as a topical oil for dry or irritated skin, but it’s not for everyone and can cause side effects.
What are the main benefits of taking this oil as a dietary supplement?
Borage seed oil is high in gamma-linolenic acid (GLA), an omega-6 fatty acid. The body uses GLA to help manage inflammation.
Some people take it for joint comfort. Others try it for symptoms linked to eczema, PMS, or menopause.
Research is mixed. Some studies show minor improvements in skin dryness or joint pain, but others don’t see much benefit.
What are the most common side effects and potential safety concerns?
The most common side effect is an upset stomach—think nausea, bloating, or loose stools.
Rarely, it can cause an allergic reaction. Signs like rash, swelling, trouble breathing, or dizziness need urgent care.
Parts of the borage plant have pyrrolizidine alkaloids (PAs) that can damage the liver if taken in large amounts.
Reputable products usually remove these, but quality varies.
Who should avoid using it or speak to a clinician before trying it?
Anyone allergic to borage, starflower, or gamma-linolenic acid should avoid it. If you have a history of severe plant allergies, use caution.
Pregnant or breastfeeding women should check with a clinician first. It’s just not clear how it affects a fetus or nursing baby.
People with liver disease or those on several medications should also get medical advice. Supplement quality and drug interactions aren’t fully understood.
How can it be used in a skincare routine for dry, sensitive, or irritated skin?
Borage seed oil works as an emollient. It helps soften the skin and supports the skin barrier to reduce water loss.
You can apply a few drops to damp skin after cleansing. Mixing it with a basic moisturizer boosts hydration.
It’s often a good fit for dry or sensitive skin, thanks to its GLA content. Many people use it once or twice daily, depending on what their skin needs.
Does it help reduce redness or symptoms associated with rosacea?
Borage seed oil might help calm visible redness from dry, irritated skin. Its fatty acids support the skin barrier and could lower inflammation.
Evidence for rosacea is pretty limited, though. Some users say they notice less dryness and stinging, but it doesn’t treat the root causes of rosacea.
If you have rosacea, patch test first—sensitive skin can react to new oils.
Will it clog pores, and what is its typical comedogenic rating?
Borage seed oil usually falls in the low to moderate range for clogging pores. Most sources put it at about 1 or 2 out of 5, which is pretty low.
If you’ve got dry or sensitive skin, chances are you’ll get along with it just fine. Still, if your skin is super oily or tends to break out easily, it’s smart to start with a tiny bit and see how things go.