Glossary
An oil cold-pressed from the seeds of the borage plant (Borago officinalis, also called starflower) that contains the highest concentration of gamma-linolenic acid (GLA) of any commercially available oil at 20-27 percent. Borage oil is clinically studied for eczema, dermatitis, and inflammatory skin conditions.
Borage seed oil contains approximately 20-27 percent GLA, roughly double the concentration of evening primrose oil (7-14 percent). This makes it the most efficient way to deliver GLA topically or orally. GLA is converted to dihomo-gamma-linolenic acid, which produces anti-inflammatory prostaglandins.
Clinical studies of borage oil for skin conditions show promising but mixed results. A study published in the British Journal of Nutrition found that borage oil supplementation improved skin barrier function and reduced transepidermal water loss in healthy elderly subjects.
Topically, borage oil can be used as a facial oil, mixed with other carrier oils, or applied directly to eczema patches and inflamed areas. Its lightweight texture and quick absorption make it suitable for facial use. Comedogenic rating is 2-3, so patch testing is recommended for acne-prone skin.
Orally, borage oil capsules (providing 240-720mg GLA daily) are used as supplements for inflammatory skin conditions, PMS symptoms, and general anti-inflammatory support. Oral supplementation requires 4-12 weeks to show skin effects.
Borage oil contains roughly twice the GLA concentration of evening primrose oil, making it more efficient per dose. However, evening primrose oil is better studied and has a longer track record. Both are effective GLA sources. Borage oil provides more GLA per capsule or per drop applied topically.
Borage oil should be avoided during pregnancy due to potential uterine-stimulating effects. It may also interact with blood-thinning medications. Consult your healthcare provider before using borage oil supplements during pregnancy or while taking medications.
Yes. Borage oil is very high in polyunsaturated fatty acids, making it prone to oxidation. Store in a dark glass bottle in the refrigerator and use within 3-6 months of opening. Rancid oil (smells like old paint) should be discarded.
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