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Product Review

Menopause Supplements Review (Soy and Red Clover Isoflavones, Black Cohosh) and Progesterone Creams

Choose the Best Menopause Supplement. Find Out Now Which Soy Isoflavone, Red Clover, Black Cohosh, and Progesterone Products Have the Active Compounds You Want!

Menopause Supplements Tested by -- Soy and Red Clover Isoflavones, Black Cohosh, and Progesterone Cream

Product Review

L-Arginine Supplements Review

Choose the Best L-Arginine Supplement. Find Out Which L-Arginine Supplement Passed CL's Tests.

L-Arginine Supplements Reviewed by

Product Review

Ginseng Supplements Review

Find the Best Ginseng Supplement. Key "Ginsenosides" Found to Range 10-Fold Across Products.

Ginseng Supplements Reviewed by ConsumerLab

Product Review

Prostate Supplements Review (Saw Palmetto and Beta-Sitosterol)

Find the Best Prostate Supplement for Symptoms of BPH. See Which Prostate Supplement Passed or Failed CL's Tests of Quality.

Product Review

Potassium Supplements Review

Be Careful with Potassium Supplements! Problems Found. Tests and Reviews of Potassium Supplements & CL's Top Picks.

Potassium Supplements reviewed by

Product Review

Zinc Supplements and Lozenges Review

Find the Best Zinc Supplements and Lozenges. Have a Cold? See CL's Top Picks Among Zinc Supplements and Lozenges.

Zinc Supplements and Lozenges Reviewed by

Product Review

Joint Health Supplements Review (Glucosamine, Chondroitin, MSM, Boswellia, Collagen and Turmeric)

One-Third of Joint Health Supplements Failed to Pass Our Tests. See Which Passed or Failed, and our Top Picks.

Review of Supplements for Joint Pain

Recalls & Warnings

March 11, 2003

Rexall Agrees to Pay up to $12 million to Users of Misleading Cellulite Supplement

On March 11, 2003, the Federal Trade Commission (FTC) reported that Rexall Sundown, Inc. (Rexall) will pay up to $12 million to resolve FTC charges regarding its marketing of the dietary supplement, "Cellasene," a purported cellulite treatment product.

Recalls & Warnings

January 17, 2012

Recall of Calcium-Vitamin D Product That's Actually Glucosamine -- Allergy Alert

As published on the U.S. FDA's website, Rexall Inc. announced a recall on January 16, 2012 of Rexall Calcium 1200 mg plus 1000 IU Vitamin D3, 60 softgels. The affected bottles actually contain a TABLET product, Triple Strength Glucosamine Chondroitin and MSM Tablets.

News Release

June 16, 2021

Wide Variations in Ginseng Potency, Quality Revealed by ConsumerLab Tests

White Plains, New York, June 16, 2021 — Ginseng is promoted for a wide range of uses, from increasing energy, "vitality," and libido, to improving blood sugar levels and preventing colds.

News Release

May 18, 2021

Caution With Potassium Supplements: You Could Get More Than Expected

White Plains, New York, May 18, 2021 — Recent tests by of popular potassium supplements on the market revealed that consumers to get much more or much less potassium than expected from certain products.

News Release

February 23, 2021

ConsumerLab Tests Reveal Best Prostate Supplements With Saw Palmetto and Beta-Sitosterol

White Plains, New York, February 23, 2021 — Over half of men over age 60 may experience increased urinary frequency, difficulty urinating, or other symptoms of an enlarged prostate, also known as benign prostate hyperplasia, or BPH.

News Release

January 04, 2018 Reveals Its Top Picks for Best Iron Supplements

White Plains, New York, January 4, 2018 — Iron supplements not only treat iron deficiency, but can help reduce unexplained fatigue in women and symptoms of some forms of restless legs syndrome. But choosing an iron supplement and knowing how to use it can be difficult.

News Release

September 26, 2017 Explains How to Take Melatonin and Reveals Its Top Supplement Picks

White Plains, New York, September 26, 2017 — Melatonin is now one of the most popular supplements, largely due to its proven ability to trigger sleep.

News Release

September 11, 2017 Tests L-Arginine "Blood Flow" Supplements, Identifying Its Top Picks

White Plains, New York, September 11, 2017 — L-arginine supplements are often promoted to increase exercise endurance, reduce symptoms of congestive heart failure and other cardiovascular conditions, and improve sexual function.

News Release

June 21, 2017

Which Magnesium Is Best? Tests Popular Brands and Reveals Its Top Pick

White Plains, New York, June 21, 2017 — Magnesium supplements are among the most popular supplements, but do you need to take one and, if so, which is best? To find out, reviewed the clinical evidence, and purchased and tested popular magnesium supplements sold in the U.S.

News Release

March 15, 2017 Reveals Best and Worst Vitamin C Supplements -- 20% Fail Tests of Quality

White Plains, New York, March 15, 2017 — Many people take large doses of vitamin C believing it will improve their health, prevent colds or reduce the risk of disease — but will it really? And when choosing a vitamin C supplement, can consumers be sure it contains what it claims? To ...

News Release

February 23, 2017 Reveals Best and Worst B Vitamin Supplements and Why Current Labels Often Mislead

White Plains, New York, February 24, 2017 — B vitamins and complexes are popular supplements, but labels often mislead, says a new report from which tested, reviewed, and compared 49 supplements from the U.S.

News Release

November 15, 2016 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, discovered significant contamination with the toxic heavy metal arsenic in pills from one brand.

News Release

June 03, 2016

What Works for Joint Health? Reviews Glucosamine, Chondroitin, MSM and Boswellia Supplements for People and Pets

White Plains, New York, June 3, 2016 — Do popular joint health supplements with ingredients such as glucosamine, chondroitin, Boswellia, and MSM really work to relieve pain or slow the progression of osteoarthritis? And, with so many to choose from, which supplements are best? To find out, ...

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.

News Release

March 01, 2016

Does Echinacea Really Help With Colds and Which Brands Are Best?

White Plains, New York, March 1, 2016 — Echinacea supplements are a popular choice for preventing colds and treating cold symptoms, but do they really work? And, with so many different types of Echinacea marketed, how do you know which one to choose? To answer these questions, ConsumerLab.

News Release

February 25, 2016

Top-rated Vitamin and Supplement Brands and Merchants for 2016 Based on Consumer Satisfaction

Each year, surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 11,534 responses collected in November, 2015. Respondents gave ratings for 963 brands and 399 merchants.

News Release

February 09, 2016

Lysine: Does It Work for Cold Sores and Which Brands Are Best? -- Reviews the Evidence and Tests Supplements Often Used to Prevent Herpes Eruptions

White Plains, New York, February 9, 2016 — Lysine is an essential amino acid often taken as a supplement to prevent cold sores, genital herpes lesions, and canker sores. It's also given to cats with feline herpesvirus 1.

News Release

September 19, 2015 Tests Popular Prostate Supplements with Saw Palmetto and Beta-Sitosterol

White Plains, New York, September 19, 2015 — Can prostate supplements with ingredients such as saw palmetto or beta-sitosterol improve symptoms of an enlarged prostate, a condition affecting more than half of men over age 60? And, if so, which supplements are properly made and labeled and ...

News Release

July 31, 2015 Tests Reveal What's Really in Menopause Supplements and Creams -- Soy Isoflavone, Red Clover, Black Cohosh, and Progesterone Products Reviewed

White Plains, New York, July 31, 2015 — Women looking for relief from hot flashes and other menopausal symptoms often turn to supplements containing estrogen-like isoflavones (from soy or red clover) black cohosh, or creams containing progesterone — but it may be difficult to choose the ...

News Release

June 10, 2015 Tests Reveal Best and Worst Magnesium Supplements

White Plains, New York, June 10, 2015 — Magnesium supplements have become extremely popular, surpassing even calcium among frequent users of supplements. However, recent tests by ConsumerLab.

News Release

May 28, 2015 Shows How to Choose the Right Melatonin Supplement for Sleep

White Plains, New York, May 28, 2015 — An estimated 60 million Americans experience insomnia each year, according to the National Institutes of Health, and they increasingly turn to the supplement melatonin for potential help. In fact, U.S. sales of melatonin increased 16.

News Release

March 17, 2015

CoQ10 & Ubiquinol Supplements Vary in Quality, as Well as Dose, Absorption, and Price According to

White Plains, New York, March 17, 2015 — Findings from a recent study by highlights the difficulty consumers have in selecting a supplement containing the highly-popular anti-oxidant CoQ10 or its activated form, ubiquinol. ConsumerLab.

News Release

February 25, 2015

Top-rated Vitamin and Supplement Brands and Merchants for 2015 Based on Consumer Satisfaction -- Results of the Survey of Vitamin & Supplement Users

Each year, surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 10,329 responses collected in November, 2014. Respondents gave ratings for 1,709 brands and 891 merchants.

News Release

May 07, 2014

Flaxseed and Other Popular Seed Oil Supplements Tested by, But Not All Brands Pass -- Flaxseed, Black Currant, Borage and Evening Primrose Oils Reviewed

White Plains, New York, May 7, 2014 — Plant seed oils are popular supplements that provide omega-3 and omega-6 fatty acids, but which products offer the best value and quality? Recent analyses by ConsumerLab.

News Release

April 09, 2014

Best Fish Oil? Testing Finds Many High Quality Supplements, But Pitfalls Exist

White Plains, New York, August 10, 2014 — Recent laboratory tests of fish oil, krill oil, algal oil, calamari oil, and green-lipped mussel oil supplements by revealed quality problems with four out of 30 supplements selected for review.

News Release

January 29, 2014

You May Be Getting More Vitamin C Than You Think from Some Supplements, Cautions -- 27% of Vitamin C Supplements Don't Meet Label Claims in Recent Tests --

White Plains, New York, January 29, 2014 — It's cold and flu season, which means many people are reaching for vitamin C, as it may modestly reduce cold symptoms (although it won't prevent a cold).

News Release

November 25, 2013

Many Probiotic Supplements Fall Short on Listed Amounts of Helpful Organisms

White Plains, New York, November 25, 2013 — Probiotic supplements and foods containing "friendly" bacteria or yeast have become popular among people hoping to improve bowel function, immunity, and even mood.

News Release

September 27, 2012 Reveals How Much Caffeine is in Energy Drinks -- Also Finds Some Drinks and Dietary Supplements Don't Contain Claimed Amounts of B Vitamins

White Plains, New York — September 27, 2012 — Energy shots and drinks are promoted to keep you alert and energized, attributing their effects to special formulas often "packed with B vitamins and nutrients to make it last," as a commercial for 5-hour Energy proclaims.

News Release

July 10, 2009

Nine joint health supplements fail quality review -- Lead contamination, missing ingredients and other problems found in supplements for people as well as for dogs, cats and horses; Many others approved

WHITE PLAINS, NEW YORK — JULY 10, 2009 — Nine supplements for osteoarthritis that recently selected for testing were found to be contaminated with lead, lack all or some of a key ingredient or have other quality problems.

News Release

June 15, 2005

Two magnesium supplements fail testing due to lead contamination. Nineteen others pass. Report now available.

WHITE PLAINS, NY — JUNE 15, 2005 — has released its latest report on the quality of magnesium supplements sold in the U.S. In addition to being an essential mineral, magnesium may help prevent migraine headaches, menstrual pain, PMS, and leg cramps during pregnancy.

Recalls & Warnings

December 02, 2014

Glucosamine Class-Action Settlement Reversed by Appeals Court

On November 19, 2014, an appeals court rejected a settlement of a class-action lawsuit that alleged label claims on glucosamine products manufactured or sold by Rexall Sundown, Inc., NBTY, Inc. or their affiliates, were false, deceptive or misleading.

Recalls & Warnings

August 27, 2013

FTC Refunds Consumers of Children's Vitamins as Part of Deceptive Advertising Settlement

On August 8, 2013, the Federal Trade Commission (FTC) announced it has mailed 10,144 refund checks to consumers who purchased Disney or Marvel Hero -themed children's vitamins, including Disney Princesses, Winnie the Pooh, Finding Nemo, and Spider-Man varieties, between May 1, 2008 and September ...

Recalls & Warnings

June 20, 2013

Glucosamine Legal Settlement Over Labeling -- Many Products Covered

On May 16, 2013, a U.S. District Court preliminarily approved a settlement of class action cases alleging that certain claims made on the labeling of specific glucosamine products are false, deceptive, and misleading. No allegations related to safety or physical injury have been made.

Recalls & Warnings

May 17, 2007

Recall of Shark Cartilage Due to Potential Contamination

On May 16, 2007, NBTY, Inc.

Recalls & Warnings

March 13, 2020

FDA Finds Problems at 52% of Supplement Manufacturing Sites in U.S. and 42% Abroad has obtained results of the FDA's inspections in Fiscal Year 2019 (October 1, 2018 - September 30, 2019) of 598 dietary supplement manufacturing facilities in the U.S.