This is a summary of research papers and studies
from the National Center for Biotechnology Information (NCBI)

ABOUT BORAGE OIL

Borage seed oil, derived from the seeds of the Borago officinalis plant, is a highly valued ingredient in both nutritional and dermatological contexts due to its unique chemical profile. Often referred to as "the good omega-6," borage oil is distinguished as nature’s richest source of gamma-linolenic acid (GLA), typically containing approximately 24% GLA. This concentration is significantly higher than that found in other similar seed oils. Beyond its fatty acid content, the oil contains vitamins A and E, which contribute to its regenerative and antioxidant properties. 

To understand how borage oil benefits the skin, one must look how omega-6 fatty acids act. In the human body, linoleic acid (LA) is converted into GLA, important for the anti-inflammatory properties, by the enzyme delta-6-desaturase. Because the skin cannot produce its own GLA, it must receive it from external sources. Once available, GLA is converted into DGLA, a precursor to prostaglandin, a potent anti-inflammatory molecule that has an immediate effect on skin hydration and the reduction of inflammation. 

Benefits for Skin 

The primary function of borage oil is the restoration and maintenance of the skin barrier. The skin’s key role is to act as a barrier against environmental stress and dehydration, a function supported by lipid membranes composed of ceramides, cholesterol, and fatty acids. Deficiency in essential fatty acids leads to abnormal transepidermal water loss (TEWL).

Age-Defying 

Borage oil (Borago officinalis) provides several anti-aging benefits for the skin, primarily by reinforcing the skin barrier, improving hydration, and offering anti-inflammatory protection. Its efficacy is largely attributed to its high concentration of omega-6 fatty acids, specifically linoleic acid (LA) (approximately 39%) and γ-linolenic acid (GLA) (approximately 22%). 

Reinforcement of Skin Barrier and Hydration

Borage oil is highly effective at maintaining the skin's moisture balance, which is essential for a youthful appearance:

• Reduced Water Loss: It has been shown to significantly decrease transepidermal water loss (TEWL). By reducing TEWL, borage oil helps restore the skin's shielding barrier, which is often compromised in aging skin.
• Cellular Membrane Stability: The polyunsaturated fatty acids (PUFA) in borage oil are important components of cellular membranes, contributing to their fluidity, permeability, and overall function, which supports a healthy skin structure.

Anti-Inflammatory and Protective Effects

Borage oil acts as a protective agent against damage and age-related inflammation:

• Reduced Sensitivity: Supplementation has been shown to decrease skin sensitivity, specifically reducing skin reddening .
• Anti-Inflammatory Metabolites: GLA in borage oil can be metabolized DGLA, which further produces metabolites that mediate anti-inflammatory effects, helping to prevent premature skin aging caused by chronic inflammation.

Improvement of Skin Texture

Borage oil contributes to improved skin properties:

• Reduction in Scaling: Clinical evaluation indicates that borage oil significantly decreases skin scaling, which is often associated with dry, aging skin.
• Smoothness and Texture: By modulating skin hydration and firmness, borage oil helps improve the overall smoothness and roughness of the skin surface.

Regulation of Transepidermal Water Loss (TEWL)

Clinical studies have consistently shown that borage oil regulates TEWL, thereby preventing dryness and improving skin smoothness. Research has demonstrated that GLA-rich oils significantly improve moisture levels. Borage oil was shown to be highly effective at reducing water loss, making the skin more occlusive and less water-permeable.

Sensitive Skin

The high levels of GLA fight skin inflammation. It is also soothing and hydrating making it gentle for sensitive skin issues. Skin can be sensitive when not enough protective oils are produced by the oil glands. This can make it dehydrated, causing inflammatory flare-ups that lead to sensitivity in skin. Applying borage seed oil topically can provide skin with the essential fatty acids it is lacking and balance out sebum.

Anti-Inflammatory Action

Borage seed oil has high levels of GLAs that has been shown to be anti-inflammatory and correct deficiencies in the skin’s sebum (natural oils) that are caused by low levels of delta-6-desaturate activity.  Because of its ability to produce anti-inflammatory prostaglandins, borage oil is used to treat various inflammatory skin conditions:

• Acne Vulgaris: A randomized, double-blind study found that 400 mg of GLA daily from borage oil for 10 weeks experienced a significant decrease in both inflammatory and non-inflammatory acne lesions. This suggests that GLA can modulate sebum production and inhibit inflammation.
• Eczema and Psoriasis: Case studies have reported dramatic decreases in symptoms—up to 97%—in patients with psoriasis and significant reductions in itching for those with eczema after long-term use.
• Elderly and Sensitive Skin: Borage oil has been shown to improve skin conditions in the elderly, whose skin is often prone to chronic dehydration and barrier dysfunction.

Gender-Specific Responses

Recent pilot research suggests that skin may respond differently to borage oil based on gender. In women, borage oil has been shown to be particularly effective at increasing skin hydration and elasticity. In men, while it also improves these parameters, its most pronounced effect is the significant increase in skin oiliness and the reduction of TEWL.

Conclusion

Borage oil is a powerful dermatological tool because it provides the skin with the specific fatty acids it cannot produce on its own. By supplying a high concentration of gamma-linolenic acid, it supports the restoration of the skin’s lipid barrier, significantly reduces water loss, and provides potent anti-inflammatory relief. Whether used as a daily moisturizer for dry skin, a specialized treatment for acne, or a soothing agent for patients undergoing cancer therapy, borage oil remains one of the most effective natural ingredients for maintaining skin integrity and health.