Black Currant Oil

Reviewed by the HeyPsych Medical Review Board

Board-certified psychiatrists and mental health professionals

Published August 17, 2025•Updated February 20, 2026•Reviewed February 20, 2026

Indications

Primary Indications

Atopic dermatitis and eczema symptom reductionPMS-related mood swings, breast tenderness, and bloatingRheumatologic inflammation supportGeneral skin and hair health

Mechanism

Black currant oil provides gamma-linolenic acid (GLA), which is metabolized into dihomo-γ-linolenic acid (DGLA). This pathway reduces pro-inflammatory eicosanoids and increases anti-inflammatory prostaglandins, contributing to skin barrier repair, reduced inflammation, and hormonal modulation. Its antioxidant content further reduces oxidative stress and may provide neuroprotective effects.

Dosing

Adult Dosing

note: Higher doses sometimes used in studies for skin and PMS symptoms.

typical: 500–2000 mg daily (providing 100–300 mg GLA)

Dosage Forms

Softgel capsules
Liquid oil

Onset Duration

Benefits for PMS or skin conditions may take 6–12 weeks of continuous use. Anti-inflammatory effects accumulate gradually.

Adverse Effects

Common Side Effects

• GI upset

• Loose stools

• Mild headache

⚠️ Serious Side Effects

Rare increased bleeding tendency when combined with anticoagulants

Warnings

Critical Safety Information

→Use with caution in patients with bleeding disorders or those on anticoagulants.
→Efficacy is modest; results vary across individuals and conditions.

Interactions

With: Warfarin and anticoagulants

Risk: Increased bleeding risk

Action: Monitor INR and bleeding signs

With: Antiplatelet drugs

Risk: Potential additive effect

Action: Monitor clinical response

Monitoring

Skin symptom improvement
PMS symptom tracking
Bleeding tendencies if on anticoagulants

Special Populations

👶Pregnancy

Limited safety data; avoid high doses

🤱Breastfeeding

Insufficient evidence; use caution

👧Children & Adolescents (Under 18)

Not well studied

👴Older Adults (65+)

Generally safe with standard dosing; monitor bleeding risk

Tapering

Not required; discontinuation may gradually reduce benefits.

Clinical Notes

Black currant oil is one of the few concentrated natural sources of GLA.
Some small studies suggest benefits in mood and stress regulation, but evidence remains preliminary.
May serve as an alternative to evening primrose oil for GLA supplementation.

This treatment information is for educational purposes only. Treatment decisions should be made in consultation with qualified healthcare professionals based on individual circumstances, symptoms, and medical history. Do not attempt treatment without professional guidance.

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