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Product Review

Ginkgo (Ginkgo Biloba) Supplements Review

Choose the Best Ginkgo Biloba Supplement. Finding Real Ginkgo Isn't Easy — 60% Fail ConsumerLab's Tests of Quality.

Ginkgo Biloba Supplements Tested by ConsumerLab.com

Product Review

Muscle & Workout Supplements Review (Creatine and Branched-chain Amino Acids)

Find the Best Muscle Enhancement Supplements. See Which BCAA and Creatine Supplements Passed CL's Tests & the Top Picks.

Muscle Enhancement Supplements (Creatine and Branched Chain Amino Acids) Reviewed by ConsumerLab.com

Product Review

Quercetin Supplements Review

Find the Best Quercetin Supplements. ConsumerLab Tests Reveal Not All Quercetin Supplements Contain What They Claim.

Quercetin Supplement Reviewed By ConsumerLab.com

Product Review

Lion's Mane and Chaga Supplements Review

Read Labels Carefully -- Many Can Mislead

Lion's Mane and Chaga Supplements tested by ConsumerLab.com

Product Review

Echinacea Supplements Review

Many Echinacea Supplements Fail CL's Tests. Make Sure You Know What You're Getting!

Echinacea supplements reviewed by ConsumerLab.com

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

Ginger Supplements, Chews & Spices Review

Tests Reveal Best and Worst Ginger Supplements & Spices. Poor Quality and Lead Contamination Discovered in Some Products.

Ginger Supplements Reviewed By Consumerlab.com

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 ConsumerLab.com

Product Review

Holy Basil Supplements Review

Find the Best Holy Basil (Tulsi) Supplements. Tests and Reviews of Popular Holy Basil Supplements & CL's Top Pick.

Holy Basil Supplements Reviewed by ConsumerLab.com

Product Review

Resveratrol Supplements Review (From Red Wine, Knotweed, and Other Sources)

See Which Resveratrol Supplements Were Best In Our Tests and Comparisons. Learn What Resveratrol Can and Can't Do.

Review of resveratrol supplements tested by ConsumerLab.com, including ratings and comparisons of product quality, price, and ingredients.

Product Review

Taurine Supplements Review for People, Dogs, and Cats

Find the Best Taurine Supplements. Learn When to Use Taurine and Which Supplement is Best.

Taurine Supplements Reviewed by ConsumerLab.com

CL Answer

What are the health benefits of stevia? Is it safe?

Learn more about the health benefits of stevia and whether it is safe. ConsumerLab.com's answer explains.

Stevia Health Benefits & Safety -- stevia leaf spoonful of stevia

News Release

10/06/2022

Lion’s Mane and Chaga Supplement Labels May Mislead, According to ConsumerLab Tests

  White Plains, New York, October 6, 2022 — Lion’s mane and chaga supplements are often promoted to improve memory and mood, boost the immune system, and a range of other health benefits.

News Release

6/16/2021

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

2/06/2021

One-Third of Echinacea Supplements Fail ConsumerLab Tests

White Plains, New York, February 6, 2021 — Echinacea is often promoted to help ward off colds, but recent ConsumerLab tests show that consumers may not always be getting what they expect when they buy an Echinacea supplement.

News Release

12/22/2020

Best and Worst Ginger Supplements, Chews & Spices Identified by ConsumerLab. Contamination, Less Ginger Than Expected in Some Products.

White Plains, New York, December 22, 2020 — Ginger is not only a popular spice but may reduce nausea from motion sickness and pregnancy and modestly decrease pain from osteoarthritis. Key compounds in ginger known as gingerols are believed to be active components of ginger.

News Release

4/03/2020

Tests of Holy Basil Supplements Show 63% Fail on Quality -- ConsumerLab Tests Reveal the Best and Worst Holy Basil Supplements

White Plains, New York, April 3, 2020 — Holy basil supplements are promoted to reduce stress and anxiety, lower blood sugar, and strengthen the immune system.

News Release

11/12/2019

Best Magnesium Supplements Revealed by ConsumerLab

White Plains, New York, November 12, 2019 — Many people do not get adequate amounts of magnesium from their diets, or may have lower levels of this essential mineral due to certain medical conditions or the use of common medications such as Nexium and Prilosec.

News Release

7/31/2019

ConsumerLab Tests Reveal Best CoQ10 and Ubiquinol Supplements

White Plains, New York, July 31, 2019 — CoQ10 is among the most popular supplements, commonly taken to offset a decline in natural levels of CoQ10 that can occur with the use of statin medications, decrease statin side effects, and increase energy.

News Release

6/25/2019

ConsumerLab Tests Reveal Best B Vitamin Supplements -- 19% of B Vitamin Supplements Fail CL's Tests of Quality

White Plains, New York, June 25, 2019 — B vitamins and complexes are among the most popular supplements sold in the U.S. because B vitamins are essential for a wide range of functions in the body.

News Release

4/01/2019

Not All Quercetin Supplements Contain What They Claim, ConsumerLab Tests Reveal

White Plains, New York, April 1, 2019 — Quercetin is a flavonoid found in foods such as onions, kale and apples. Sold as a supplement, quercetin is promoted to help with a range of conditions including prostatitis, asthma, and rheumatoid arthritis, as well as blood sugar control.

News Release

11/15/2016

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.