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Product Review
Black Currant, Borage, Evening Primrose, Flax and Hemp Seed Oil Review
Choose the Best Flaxseed and Other Oils Based on Our Tests.
News Release
January 23, 2025
ConsumerLab Tests Identify Best Black Currant, Borage, Evening Primrose Flax and Hemp Oils
White Plains, NY, January 23, 2025 — Black currant, borage, evening primrose, flax, and hemp oils contain omega-3, -6, and/or -9 fatty acids that, when replacing saturated fats in the diet, may help reduce cardiovascular risk.
CL Answer
What is the benefit of magnesium orotate compared to other forms of magnesium?
Find out if magnesium orotate is the best form of magnesium for supplements, including safety concerns.
News Release
July 10, 2020
Best and Worst Tuna, Salmon and Sardines? ConsumerLab Tests Reveal Amounts of Omega-3s and Toxic Heavy Metals in Canned and Packaged Fish
White Plains, New York, July 10, 2020 — Canned and packaged tuna, salmon and sardines can be an excellent source of omega-3 fatty acids, but some may also be contaminated with toxic heavy metals such as mercury and arsenic.
News Release
September 12, 2018
Little Omega-3 and High Mercury Found In Some Canned Tuna -- Better Choices Selected for Tuna and Salmon
White Plains, New York, September 12, 2018 — Some popular canned tuna contain much lower amounts of omega-3 fatty acids than recommended for cardiovascular benefits while being high in mercury and/or arsenic, according to tests by ConsumerLab.com.
News Release
November 27, 2017
Flaxseed and Other Popular Omega 3 & 6 Oil Supplements Tested, But Not All Brands Pass -- Tests of Black Currant Oil, Borage Oil, Evening Primrose Oil, Flaxseed Oil, and Hemp Oil Supplements
White Plains, New York, November 27, 2017 — Flaxseed oil and other popular seed oil are popular supplements that provide omega-3 and omega-6 fatty acids and may help with inflammatory conditions. But which seed oil supplements are the best? To find out, ConsumerLab.
News Release
November 01, 2017
Gummies Are Most Likely to Fail Testing in Review of Multivitamins -- Best and Worst Multivitamins Identified by ConsumerLab Testing
White Plains, New York, November 1, 2017 — Multivitamin/multimineral supplements are among the most popular supplements, with many consumers relying on them to provide nutrients they may not get from their diets. However, ConsumerLab.
News Release
November 15, 2016
ConsumerLab.com Finds Arsenic in Testing of Potassium Supplements -- Safer Choices Identified. Many Americans May Need More Potassium
White Plains, New York, November 15, 2016 — During a recent analysis of potassium supplements sold in the U.S. and Canada, ConsumerLab.com discovered significant contamination with the toxic heavy metal arsenic in pills from one brand.
News Release
February 09, 2012
Probiotics grow in popularity but don't always deliver on promises says ConsumerLab.com -- New report provides guidance to consumers
White Plains, New York, February 9, 2012 — Probiotic supplements and foods containing "friendly" bacteria or yeast have become popular options for people hoping to improve bowel function or boost immunity. But many customers are confused by the vast array of choices.
Clinical Update
6/21/2024
Glycine Top Choice?
We were asked by a CL member for our top choice among glycine supplements. We have not tested glycine supplements, but we reviewed products on the market to suggest what appear to be good choices. See our top choices for glycine and learn more about it in our article about glycine.
Clinical Update
12/04/2025
Top Choices for IP6 & Myo-Inositol
Find out which IP6 (inositol hexaphosphate) and myo-inositol supplements are our top choices in our article about IP6 and myo-inositol.
Clinical Update
11/07/2023
PEA Top Choices
Find out which PEA supplements are our top choices in our article about PEA (palmitoylethanolamide). (Note: ConsumerLab has not yet tested PEA products, but we reviewed the science and compared product labels and prices.)
Clinical Update
12/20/2022
Tallow Soap for Sensitive Skin?
Tallow soap might not be the best choice for people with dry or sensitive skin. Find out why in our updated CL Answer about finding a soap that won't irritate the skin.
Clinical Update
8/10/2021
Pulse Oximeter Accuracy
Can you get an accurate pulse oximeter measurement while wearing nail polish?
Also learn how to get the most accurate reading with pulse oximeters and see our choice for best home pulse oximeter.
Clinical Update
10/09/2021
Moderna vs. Pfizer: When to Choose One Over the Other
Two very different medical reports this week seem to indicate important, although subtle, differences between these two mRNA vaccines. Namely, that the Moderna vaccine has somewhat greater efficacy but, not unexpectedly, at somewhat greater risk of myocarditis in younger people. This seems to suggest that, if given a choice, Moderna may be better for older people while Pfizer may be safer for younger people.
Clinical Update
4/13/2019
Maca for Improved Functioning?
Do maca supplements improve functioning and lessen fatigue? A recent study found different results for men and women. Get the details in the What It Does section of the Maca Supplements Review. Also see our top choices among maca products.
Clinical Update
3/02/2016
Probiotic Helps with IBS
A probiotic was found to improve many symptoms of irritable bowel syndrome in a recent study. Studies with other probiotics have also shown benefits, but be aware that the choice of probiotic seems to depend on the type of IBS. Get the details, as well as our quality ratings, in the Probiotic Supplements Review >>
Clinical Update
7/12/2017
Fat Fish vs. Lean Fish
If you are trying to control your blood sugar, it turns out that your choice of fish can make a difference. Learn more in the "What It Does" section of the Fish Oil Supplements Review. The review includes our Top Picks among omega-3 supplements.
Clinical Update
1/16/2018
Lutein and Zeaxanthin Improve Memory
Lutein and zeaxanthin may help to slow the progression of age-related macular degeneration in people with low blood levels of lutein. A new study suggests these compounds may have another benefit -- improving memory in some people. Get the details in the "What It Does" section of the Vision Supplements Review >> (Also see our top choices among products.)
Clinical Update
9/22/2018
Cinnamon Side Effects
If you take a cinnamon supplement (or regularly use large amounts of cinnamon), be aware of the potential for side effects. See the Concerns and Cautions section of the Cinnamon Supplements Review. (Also see what our tests of cinnamon supplements and spices found and our top choices among products).
Clinical Update
12/04/2017
What NAC (N-Acetylcysteine)
NAC is both a supplement and a drug used to treat conditions ranging from flu and chronic bronchitis to compulsive behavior. A recent study evaluated its use in preventing kidney injury during angiography (imaging of blood vessels). Get the results and learn more in the "What It Does" section of the NAC (N-Acetylcysteine) Supplements Review >> Also see our top choices among NAC supplements.
Clinical Update
1/23/2019
Garlic and Blood Pressure
If you have high blood pressure, a particular garlic supplement may provide some benefit, according to a recent study. For details, see the "What It Does" section of the Garlic Supplements Review. Also see our top choices for garlic supplements.
Clinical Update
10/05/2019
L-Theanine for Sleep and Cognition?
Several studies have evaluated whether a single dose of L-theanine (found in green tea) can reduce stress and anxiety. A new study has evaluated the effect of L-theanine when taken daily for several weeks. See the results in the What It Does section of the L-Theanine Supplements Review. Also see our top choices for L-Theanine.
Clinical Update
12/15/2018
Enzymes for Indigestion
Will taking digestive enzymes reduce indigestion? Although not all studies have shown a benefit, a recent study suggested improvements with no adverse effects. For details, see the Digestive Discomfort section of the Digestive Enzyme Supplements Review. (Also see our top choices for enzyme supplements).
Clinical Update
2/05/2019
Theanine for Anxiety?
Theanine is promoted as an anxiety-reducing supplement, but does it really work? See results of a recent study in the What It Does section of the L-theanine Supplements Review. Also see our top choices for L-theanine supplements.
Clinical Update
5/02/2020
Can Garlic Slow Atherosclerosis?
Can taking a garlic supplement slow the build-up of plaque in arteries? See what a new study found in the What It Does section of the Garlic Supplements Review. Also see our top choices for garlic supplements.
Clinical Update
12/10/2019
Huperzine A for Memory?
Huperzine A is often touted as a memory-enhancing supplement. Find out if it helped in a recent study of people with traumatic brain injuries in the What It Does section of the Huperzine A Supplements Review. Also see our top choice for Huperzine A.
Clinical Update
1/23/2024
Best Colostrum?
Although we have not yet tested colostrum products, we’ve identified a top choice based on key criteria in our article about bovine colostrum supplements.
Clinical Update
2/09/2024
Sweeteners for Cold Drinks
If you're trying to avoid sugar, see our top 2 sweeteners for cold drinks in our article about sugar substitutes, which also includes our top choices for hot drinks and for baking.
Clinical Update
3/15/2024
Better Skin With Bovine Colostrum?
Bovine colostrum supplements have been promoted for improving aging skin and reducing wrinkles, but is there any evidence of this? Find out in our article about bovine colostrum, which includes our top choice among products.
Clinical Update
4/02/2024
Best Bacopa?
A CL member asked which bacopa supplement is best. Based on what has been used in clinical studies, you can see which product we suggest as a top choice for bacopa.
Clinical Update
9/08/2023
Best Unwaxed Floss
Our Top Pick dental floss is waxed (as this tends to be stronger and easier to use than unwaxed), but if you prefer unwaxed floss, see our top choice for unwaxed floss.
Clinical Update
6/06/2023
Berberine's New Popularity
Berberine is being called "nature’s Ozempic" – referring to the type 2 diabetes drug also used for weight management. But is there evidence to support this? See our Berberine Review to find out what it can do, if it's safe, how products rate on quality, and our top choices.
Clinical Update
6/09/2025
Desensitizing Toothpastes Compared
Find out why 13 popular toothpastes for sensitivity are not among our top choices, and why two are in the Sensitivity section of our article about toothpastes and other dental products.
Clinical Update
7/22/2025
Citrus Bergamot for Cholesterol?
Extracts of citrus bergamot have shown preliminary benefit in lowering cholesterol, as noted in our article about supplements for heart health. Although we have not tested citrus bergamot supplements, if you are considering one, see our top choice based on ingredient information and price.
Clinical Update
4/16/2026
PEA for Pet Joint Pain?
Does PEA (palmitoylethanolamide) help dogs or cats with joint pain? Find out what the research shows and our top choices for PEA.
Clinical Update
5/07/2026
Concern with Glycerol?
Glycerol is added to foods and beverages for sweetness/texture, but too much can cause side effects. Find out which foods are riskiest in our article about sweeteners and sugar substitutes, which includes our top choices for sweeteners.
Clinical Update
1/30/2025
Concern with Sorbitol in Flintstones?
A CL member asked if sorbitol in Flintstones multivitamins poses a risk. See our discussion about this in our Multivitamin Review, which includes our Top Pick multivitamins for children and adults.
Also see our article: Sugar Substitutes: Pros, Cons, and Best Choices.
Clinical Update
2/07/2025
New Top Pick Toothpaste
We’ve changed our Top Pick for sensitive teeth. Find out why and also see our toothpaste choices for bleeding gums and whitening in our article about toothpastes.
Recalls & Warnings
July 26, 2023
FDA Warns Wise Women’s Choice for Promoting Plant-Based Product for Contraception
On July 20, 2023, the FDA issued a warning letter to Wise Women’s Choice following a review of the company’s website and social media, which found statements about the company’s Wise Women’s Choice products to be drug claims because products were intended to affect ...
News Release
November 16, 2009
ConsumerLab.com finds many probiotics don't deliver listed ingredients
White Plains, New York November 16, 2009 — Many probiotic supplements do not contain the number of viable organisms listed on their labels according to a new report from ConsumerLab.com.
Recalls & Warnings
June 09, 2025
Nordic Naturals Zero Sugar Multivitamin Gummies for Kids Recalled
On May 2, 2025, Nordic Naturals, Inc. recalled 1,164 bottles of Nordic Naturals Zero Sugar Kids Multivitamin Supplement gummies because they were mislabeled. According to a Nordic Naturals representative, the gummies contain sugar and fumaric acid, which are not listed on the label.
Recalls & Warnings
November 21, 2022
Healthy Sense and People’s Choice Multis Recalled
On November 17, 2022, Mason Vitamins Inc.
Recalls & Warnings
December 05, 2024
Liquid Multivitamin Recalled
On November 6, 2024, Armonia Natural Store LLC issued a recall of 64 bottles of OneMultivitaminic GAF-PLUS Advance 300 ml because they contain undeclared acetaminophen and dexamethasone phosphate (which are not permitted in dietary supplements) and the undeclared sweetener aspartame.
News Release
August 04, 2009
Most vitamin E supplements pass testing, but what seems natural may be synthetic according to ConsumerLab.com -- New review of vitamin E supplements, oils, and creams released today
White Plains, New York — November 16, 2009 — Many probiotic supplements do not contain the number of viable organisms listed on their labels according to a new report from ConsumerLab.com.
News Release
December 10, 2007
ConsumerLab.com finds improvement in quality of omega-3 and -6 supplements — Results for 22 products made from evening primrose, flaxseed, borage and black currant oils
WHITE PLAINS, NEW YORK — DECEMBER 10, 2007 — A new report on the quality of omega-3 and -6 fatty acid supplements made from seed oils was released by ConsumerLab.com today. Two products were slightly low in one fatty acid, but this is an improvement over results from ConsumerLab.
News Release
July 12, 2005
ConsumerLab.com finds some supplements lower in omega-3 and omega-6 fatty acids than claimed — Report available for 23 products made from oils of black currant, borage, evening primrose and flax
WHITE PLAINS, NY — July 12, 2005 — ConsumerLab.com has released its latest report on the quality of supplements made from the seed oils of black currant, borage, evening primrose, and flax.
Recalls & Warnings
December 05, 2024
Organic Hot Agave Recalled Due to High Amounts of Yeast
On November 17, 2024, Cumberland Packing Corp issued a recall of 549 cases of Organic Hot Agave in the Raw because this product was found to contain elevated counts of osmophilic yeast (yeast that grows in high-sugar environments that can lead to spoilage).
Recalls & Warnings
July 18, 2022
CVS, Target, Walgreens, and Other Oral Magnesium Citrate Laxatives Recalled Due to Bacterial Contamination
On July 14, 2022, Magnesium Citrate Laxative Oral Solution Lemon Flavor products manufactured by Vi-Jon, LLC and sold under various store brand names were recalled after testing identified the presence of the bacteria Gluconacetobacter liquefaciens.
Recalls & Warnings
February 24, 2023
Bountiful Charged with “Review Hijacking,” False Advertising of Nature’s Bounty Supplements on Amazon
On February 16, 2023, the Federal Trade Commission (FTC) charged The Bountiful Company (formerly NBTY), whose brands include Nature’s Bounty and Sundown, with deceptively using Amazon reviews and badges (such as “#1 Best Seller” and “Amazon’s Choice”) from its ...
Recalls & Warnings
July 21, 2020
51 CBD Products Recalled Due to Lead Contamination
On June 23, 2020, InHe Manufacturing, LLC and MHR Brands issued a recall of fifty-one CBD products due to contamination and/or potential with lead. Thirty-six of the products are marketed for people and fifteen of the products are marketed for pets.
Recalls & Warnings
June 10, 2017
Seller of Prostate, Immune Supplements & More Warned for Manufacturing Violations
On May 25, 2017 the FDA issued a warning letter to The Herbalist, Inc.
Recalls & Warnings
March 14, 2011
22 Brands of Whey Protein Recalled Due to Salmonella Concern
The FDA posted a recall notice involving 22 brands of whey protein powder due to potential contamination with salmonella. The recall was voluntarily initiated on March 10, 2011 by the manufacturer of the products, Vitalabs, Inc.
Recalls & Warnings
November 28, 2012
Maker of Pycnogenol, Memory and Immune Supplements Warned For Manufacturing Violations and Misbranding
On November 15, 2012, the FDA issued a warning letter to contract manufacturer Health Technology, Inc.
Recalls & Warnings
August 24, 2012
Protein Shots, Drinks and Gelatin Recalled For Potential Botulism Contamination
On August 17, 2012, Protica Inc.
