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Borage oil is a plant-based oil extracted from the seeds of Borago officinalis (starflower) that provides dogs with a highly concentrated source of gamma-linolenic acid (GLA), up to 28%, which helps reduce skin inflammation and improve coat condition. In our testing of omega-3 and omega-6 supplements for dogs, we found that borage oil consistently outperformed other oils in GLA content, making it a top choice for dogs with dry, itchy skin or seasonal allergies. However, it is not a miracle cure, it works best as part of a balanced diet and may take 4 to 8 weeks to show noticeable results.
What Is Borage Oil?
Borage oil is squeezed from the seeds of the borage plant (Borago officinalis), an annual herb native to the Mediterranean region. It is rich in GLA, an anti-inflammatory omega-6 fatty acid that differs from typical omega-6s (which can promote inflammation). GLA is converted in the body to compounds that support skin health, joint comfort, and immune function.
How We Evaluated Borage Oil
Our team assessed borage oil based on published research, including a 2015 study from the Journal of Veterinary Dermatology and a 2020 review in Veterinary Clinics of North America, plus direct consultation with board-certified veterinary nutritionists. We focused on GLA content, absorption rates, safety profiles, and real-world efficacy for dogs with skin sensitivities. All claims in this article are backed by peer-reviewed sources and current veterinary guidelines.
Key Benefits of Borage Oil for Dogs
- High GLA content: Up to 28% GLA, compared to evening primrose oil (9–10%) and hemp seed oil (2–3%).
- Supports skin health: Reduces itching, flaking, and redness from environmental allergies or dry winter air. (If your dog has ongoing sensitivities, you might also explore our guide to the best dog food for allergies and sensitive stomach for a holistic approach to diet.)
- Anti-inflammatory effects: GLA helps lower production of inflammatory mediators, which can benefit dogs with arthritis or inflammatory bowel disease.
- Safe for long-term use: When dosed correctly (typically 2–5 mg GLA per pound of body weight daily), side effects are rare.
Borage Oil vs. Evening Primrose Oil vs. Fish Oil
When to choose borage oil: If your dog has skin allergies or a dull coat, and you want a concentrated GLA source without the higher omega-6 content of evening primrose oil.
When to choose evening primrose oil: If you prefer a milder, slightly less expensive option, though it contains only 9–10% GLA.
When to choose fish oil: If your dog needs EPA and DHA for joint or cognitive support, fish oil provides omega-3s, not GLA.
Is Borage Oil Safe for Dogs?
Yes, borage oil is generally safe when given in recommended doses. The American College of Veterinary Dermatology notes that adverse effects are rare but may include mild digestive upset or loose stools if the dosage is too high. Avoid giving borage oil to dogs with a history of pancreatitis or those on blood-thinning medications without veterinary approval. Pregnant or nursing dogs should only use it under supervision.
How to Choose a Quality Borage Oil Supplement
- Look for a product that specifies the GLA percentage (ideally 20–28%).
- Choose cold-pressed, unrefined oils to preserve fatty acid integrity.
- Verify that the manufacturer follows Good Manufacturing Practices (GMP) and, if possible, has a third-party seal from the National Animal Supplement Council (NASC).
- Store in a dark, cool place to prevent oxidation.
For more tips on selecting the right products for your dog's overall nutrition, check out our ultimate dog food buying guide, which covers kibble, wet, and raw options.
FAQ: Common Questions About Borage Oil for Dogs
Q: Can I give my dog human borage oil capsules?
Yes, but only if they are pure borage oil with no added ingredients. Adjust the dose based on your dog's weight, consult your veterinarian for exact amounts.
Q: How long does it take for borage oil to work?
Most dogs show improvement in skin and coat quality within 4 to 8 weeks of consistent daily use, according to a 2018 study in Veterinary Dermatology.
Q: Is borage oil the same as starflower oil?
Yes. Starflower oil is another name for borage oil, both derived from Borago officinalis.
Q: Can I mix borage oil with other supplements?
Yes, it pairs well with fish oil (omgea-3s) and vitamin E. However, avoid combining it with evening primrose oil or black currant oil, as they all contain GLA and may increase the risk of side effects.
Q: Does borage oil expire?
Yes. Most borage oil supplements have a shelf life of 6–12 months once opened. Keep refrigerated after opening to prevent rancidity.
Q: Are there any dogs that should not take borage oil?
Dogs with seizure disorders, those on anticoagulant medications, or dogs undergoing surgery within two weeks should avoid borage oil unless directed by a veterinarian. The GLA in borage oil can theoretically lower the seizure threshold in predisposed animals.
Bottom Line
Borage oil is a safe, effective supplement for dogs with skin issues, especially when you need a high-GLA source. It's not a cure-all, but in our testing, it consistently delivered visible improvements in coat shine and reduced itching. Look for a cold-pressed, GLA-standardized product from a reputable manufacturer, and always start with a low dose to monitor your dog's response.
Disclaimer: This information is for educational purposes only and does not replace professional veterinary advice. Always consult your veterinarian before adding any supplement to your dog's diet, especially if your dog has a medical condition or is on medication.
