Interactions on record — worth a quick check against your medications. Based on 1 of 2 ingredients. Check your meds →
Dietary supplement

Black Currant Seed Oil 500 mg-GLA 70 mg Ingredients & Drug Interactions

by Vital Nutrients

Black Currant Seed Oil 500 mg-GLA 70 mg label
See full label image
Capsule Category: Fat/fatty Acid
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 30, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Black Currant Seed Oil 500 mg-GLA 70 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Black Currant Seed Oil 500 mg-GLA 70 mg is a dietary supplement by Vital Nutrients with 2 active ingredients. Its ingredients are commonly taken for dry eyes and eye strain, joint pain and inflammation, immune and general wellness support.Based on those ingredients, 140 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Black Currant Seed Oil. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Black Currant Seed Oil 500 mg-GLA 70 mg by Vital Nutrients

Ask about any prescription or over-the-counter medication and we check it for interactions with Black Currant Seed Oil 500 mg-GLA 70 mg by Vital Nutrients — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Black Currant Seed Oil 500 mg-GLA 70 mg by Vital Nutrients

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 16, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 2 of its 2 active ingredients.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains 2 active ingredients per capsule: black currant seed oil (500 mg) and gamma-linolenic acid — GLA (70 mg). Black currant seed oil is a plant-based oil rich in essential fatty acids.

The remaining ingredients are gelatin, glycerin, and purified water, which are used as a capsule shell and to hold the formula together.

Does it work?

Couldn't assess
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Not assessable

This is a single-ingredient Black Currant product and its label doesn't state a use — see Black Currant's own graded uses on its monograph.

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.

The evidence for black currant seed oil isn't established yet for the conditions we've reviewed — we hold insufficient reliable evidence to rate it for Alzheimer disease, liver disease, upper respiratory tract infection, cough, or atopic dermatitis (eczema). That doesn't mean it doesn't work; it means the research on it isn't strong enough yet for us to say whether it does.

The evidence, ingredient by ingredient Black Currant

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

The berry itself is safe to eat as food, but concentrated supplements like this one are less studied and should be used with caution. Mild diarrhea was reported by a small number of trial participants (8 out of 2,154) taking black currant seed oil 1.8 grams twice daily for 6 weeks; it appeared 2–10 days after starting.

There isn't enough data on file about this product during pregnancy or breastfeeding — talk with your doctor or pharmacist for personalized advice if you're pregnant, planning to become pregnant, or nursing.

Side effects, ingredient by ingredient Black Currant

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 1 of the 1 matched ingredient can interact with medications — Black Currant.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs.
  • For scale: 140 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before taking this product, double-check with your doctor or pharmacist if you use blood thinners or antiplatelet drugs (like warfarin or aspirin) — black currant seed oil may increase bleeding risk. Also flag any antipsychotic medications, especially phenothiazines, because of theoretical concern about seizure risk.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no assessable stated purpose. Moderate medication interactions have been identified, and safety information is well characterized.

Black currant seed oil may be worth considering if you're looking to add omega fatty acids to your routine, but the evidence for specific health claims isn't solid yet. If you take blood thinners, antiplatelet drugs, or antipsychotics, clear this with your doctor or pharmacist first — the supplement may affect how they work.

Check your exact medications with the tool on this page before you start.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 2 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Jan 24, 2024.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Black Currant Seed Oil 500 mg-GLA 70 mg, straight from the product label.

Brand Vital Nutrients
Barcode (UPC) 693465204115
Net contents 100 Capsule(s)
Market status On market
Date entered into DSLD Jan 24, 2024
DSLD ID 304953
Product type Fat/fatty Acid
Supplement form Capsule
Dietary claims / uses All Other
Intended target group(s) Adult (18 - 50 Years), Gluten Free, Dairy Free, Sugar Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Black Currant Seed Oil 500 mg-GLA 70 mg by Vital Nutrients, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
1 Softgel Capsule(s)
Maximum serving Sizes:
2 Softgel Capsule(s)
Servings per container
50
UPC/BARCODE
693465204115
IngredientAmount% DV
Gamma-Linolenic Acid140 mg--
Black Currant Seed Oil1000 mg--

Other ingredients: Gelatin, Glycerin, Water, Purified

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Storage

Store sealed in a cool dry place

Precautions

Keep out of reach of children

Use only if safety seal is intact

Warning: If pregnant, consult your physician before taking.

Suggested/Recommended/Usage/Directions

Recommendations: Take 1 to 2 capsules 2 to 3 times daily, or as directed by your healthcare professional.

Formulation

Excludes coatings, binders, gluten (wheat, rye, barley), milk/dairy (casein/wheat), soy protein, egg protein, sugar. Verified by independent testing

Raw materials and finished products are independently tested by U.S. labs. Learn more at vitalnutrients.net

FDA Statement of Identity

Dietary Supplement

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Black Currant Seed Oil 500 mg-GLA 70 mg by Vital Nutrients label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Black Currant Seed Oil 500 mg-GLA 70 mg label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Black Currant Seed Oil 500 mg-GLA 70 mg by Vital Nutrients

These are the 2 active ingredients this product is made of. Select any to open its full monograph.

Serving size1 Softgel Capsule(s) Dosage formCapsule Servings per container50 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Gamma-Linolenic Acid

140 mg per serving

Black Currant Seed Oil

Interacts with
140 drugs
1000 mg per serving

Black currant is a nutritious berry that is rich in vitamin C and antioxidants, and its seed oil contains the omega-6 fatty acid GLA. While it is enjo...

Black Currant Seed Oil monograph & interactions

Other (inactive) ingredients: Gelatin, Glycerin, Water, Purified. These complete the product’s ingredient list but are not active constituents.

Interaction report

Black Currant Seed Oil 500 mg-GLA 70 mg by Vital Nutrients Drug Interactions

Want to check YOUR meds against Black Currant Seed Oil 500 mg-GLA 70 mg?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

 Go to the checker
140Drugs
140 Moderate

Ingredients driving the most interactions

Black Currant Seed Oil 140

Individual Drug Interactions

The ingredients in Black Currant Seed Oil 500 mg-GLA 70 mg interact with 140 drugs. Click any drug to see the details.

1 of the 2 ingredients in Black Currant Seed Oil 500 mg-GLA 70 mg interact with drugs. Each result below shows which ingredient is responsible. Black Currant Seed Oil

Each ingredient & the kinds of drugs it affects

For each ingredient in Black Currant Seed Oil 500 mg-GLA 70 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Black Currant Seed Oil2 drug types · 140 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, black currant seed oil might increase the risk of bleeding if used in combination with anticoagulant or antiplatelet drugs.
Gamma-linolenic acid (GLA), a constituent of black currant seed oil, appears to have antiplatelet effects.

Likelihood Possible Evidence D
Phenothiazines

Theoretically, black currant seed oil might increase the risk of seizure in patients receiving phenothiazines.
Black currant seed oil contains gamma-linolenic acid (GLA). There is some concern that taking supplements containing GLA might cause seizures, or lower the seizure threshold, when taken with phenothiazines, although there is no evidence that black currant seed oil causes seizures. In one report, three patients with schizophrenia who had received phenothiazines developed EEG changes suggestive of temporal lobe epilepsy after starting treatment with GLA, although none experienced an actual seizure. In another report, two patients with schizophrenia who were stabilized on phenothiazines developed seizures when evening primrose 4 grams daily, which contains GLA, was added. One of these patients had a prior history of seizures.

Likelihood Possible Evidence D
Black Currant Seed Oil full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Black Currant Seed Oil 500 mg-GLA 70 mg, from the product label.

Vital Nutrients

See all Vital Nutrients products
Name
Vital Nutrients
Street Address
45 Kenneth Dooley Dr
City
Middletown
State
CT
ZipCode
06457
Web Address
vitalnutrients.net
Pharmacist Counseling Corner

Black Currant Seed Oil 500 mg-GLA 70 mg by Vital Nutrients: Common Questions

Does Black Currant Seed Oil 500 mg-GLA 70 mg by Vital Nutrients interact with any medications?
Yes. Based on its ingredients, Black Currant Seed Oil 500 mg-GLA 70 mg has a known interaction with 140 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Black Currant Seed Oil 500 mg-GLA 70 mg contains 2 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Can I take this if I'm on a blood thinner like warfarin?
Not without checking first with your doctor or pharmacist. Black currant seed oil may increase your bleeding risk when combined with blood thinners or other antiplatelet drugs because of its gamma-linolenic acid content. Your healthcare provider needs to assess whether it's safe for you personally.
What's the difference between black currant seed oil and regular black currant?
Black currant the berry is safe to eat in food amounts, but concentrated supplements like this one have been studied much less, so we recommend using caution and talking it over with your doctor first.
Is it safe to take while pregnant or breastfeeding?
We don't have enough safety data on concentrated black currant seed oil during pregnancy or lactation. Talk with your doctor or pharmacist before taking this if you're pregnant, planning to become pregnant, or nursing — they can help you decide based on your personal situation.
What side effects might I experience?
Mild diarrhea was the main side effect reported in studies, appearing a few days after starting and affecting only a small number of people. Most people tolerated it well.
Does this actually work for eczema or cough?
The evidence isn't clear yet. We don't have reliable research showing whether black currant seed oil helps with eczema, cough, upper respiratory infection, or other conditions we reviewed. More study is needed.
What exactly is gamma-linolenic acid?
It's an omega-6 fatty acid found naturally in black currant seed oil. It's the compound responsible for the antiplatelet and potential seizure-threshold effects we flag when you're on certain medications.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Black Currant Seed Oil 500 mg-GLA 70 mg is safe with your meds?

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Black Currant Seed Oil 500 mg-GLA 70 mg label
Go deeper

The Full Monographs Behind Black Currant Seed Oil 500 mg-GLA 70 mg’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Black Currant

Interacts with 140 drugs

Black currant is a nutritious berry that is rich in vitamin C and antioxidants, and its seed oil contains the omega-6 fatty acid GLA. While it is enjoyed safely as a food and is popular as a...

Read the full Black Currant monograph →
Sources

Sources & How We Checked

Black Currant Seed Oil 500 mg-GLA 70 mg's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 6 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Black Currant 6 references
  1. Guivernau M, Meza N, Barja P, Roman O. Clinical and experimental study on the long-term effect of dietary gamma-linolenic acid on plasma lipids, platelet aggregation, thromboxane formation, and prostacyclin production. Prostaglandins Leukot Essent Fatty A PubMed
  2. Fa-lin Z, Zhen-yu W, Yan H, et al. Efficacy of blackcurrant oil soft capsule, a Chinese herbal drug, in hyperlipidemia treatment. Phytother Res 2010;24 Suppl 2:S209-13. PubMed
  3. Holman CP and Bell AF. A trial of evening primrose oil in the treatment of chronic schizophrenia. J Orhtomolecular Psych 1983;12:302-304.
  4. Vaddadi KS. The use of gamma-linolenic acid and linoleic acid to differentiate between temporal lobe epilepsy and schizophrenia. Prostaglandins Med 1981;6(4):375-379. PubMed
  5. Norred, C. L. and Brinker, F. Potential coagulation effects of preoperative complementary and alternative medicines. Alt Ther 2001;7(6):58-67.
  6. Puri BK. The safety of evening primrose oil in epilepsy. Prostaglandins Leukotrienes Essential Fatty Acids 2007;77:101-3. PubMed

See these in context on the Black Currant monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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