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Product Review
Quercetin & Rutin Supplements Review
Quality's a Concern With Quercetin and Rutin Supplements -- Only 17% of Claimed Amount In One
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.
Product Review
GABA Supplements Review
Does GABA Work As a Supplement?
Product Review
Muscle & Workout Supplements Review (Creatine and Branched-chain Amino Acids)
Do Creatine and BCAAs Really Improve Strength and Recovery?
Product Review
Lion's Mane and Chaga Supplements Review
Read Labels Carefully -- Many Can Mislead
Product Review
Ginger Supplements, Chews & Spices Review
Tests Reveal Best and Worst Ginger Supplements & Spices. Poor Quality and Lead Contamination Discovered in Some Products.
Product Review
Echinacea Supplements Review
Many Echinacea Supplements Fail CL's Tests. Make Sure You Know What You're Getting!
Product Review
Ginseng Supplements Review
Find the Best Ginseng Supplement. Key "Ginsenosides" Found to Range 10-Fold Across Products.
Product Review
Potassium Supplements Review
Be Careful with Potassium Supplements! Problems Found. Tests and Reviews of Potassium Supplements & CL's Top Picks.
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.
News Release
3/30/2023
ConsumerLab Tests Show Not All Quercetin and Rutin Supplements Contain What They Claim
White Plains, New York, March 30, 2023 — Quercetin is a plant compound found in its natural form, rutin, in foods such as capers, onions, and kale.
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.
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.
News Release
2/23/2023
Best GABA Supplements Identified by ConsumerLab
White Plains, New York, February 23, 2023 — GABA (gamma-aminobutyric acid) supplements are claimed to have a "calming" effect, and are often promoted to reduce stress and insomnia and improve cognitive performance.
CL Answer
Pros and Cons of Stevia and Other Sugar Substitutes
Learn about the pros and cons of sugar substitutes and artificial sweeteners summarized in our table within this article.
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.
