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GLA (borage, evening primrose, black currant)
Full ranking Dose tool Products (667)
Key facts
Daily Value (US FDA)—
Tolerable Upper Intake Level (UL)— Authoritative daily maximum: 6,000 mg
Median（Per day）215 mgP5 3.3 – P95 1,000
Products667
Sources: https://webprod.hc-sc.gc.ca/nhpid-bdipsn/atReq?atid=primrose.onagre2&lang=eng · Health Canada NNHPD evening primrose oil monograph: 1.3-6 g oil/day (label mass is usually oil; GLA itself is 7-14 % of it)
Daily dose across products（mg/day）
Authoritative daily maximum 6,000
1.25 mglog scale · n=6671,600 mg
Label data from official national databases and brand websites, as declared; not lab-verified.
Top ranked
| Rank | Brand | Product | Per day | Score |
|---|---|---|---|---|
| 1 | New Roots Herbal Inc. | Borage oil | 500 mg | 84.0 |
| 1 | GFR Pharma Ltd. | Evening Primrose Oil | 1,000 mg | 84.0 |
| 1 | Nature's Sunshine Products of Canada Ltd. | Evening Primrose Oil | 500 mg | 84.0 |
| 1 | Metagenics Inc. | GLA Forte | 1,100 mg | 84.0 |
| 1 | GNC | GNC EVENING PRIMROSE OIL 1300MG WITH GLA & LA | 1,300 mg | 84.0 |
For information only; not medical advice. Talk to a doctor or pharmacist before starting or stopping any supplement.