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Clinical Update


CBD for Schizophrenia?

People with schizophrenia were given CBD (cannabidiol) twice daily in the hope that it would improve symptoms and cognitive performance. Find out if it helped in the What It Does section of the CBD Supplements Review. (Also see our test results for CBD products.)

Clinical Update


Ashwagandha for Schizophrenia

Can ashwagandha reduce symptoms of schizophrenia? Find out what a new study suggests in the What It Does section of the Ashwagandha Review. (Also see our Top Pick among ashwagandha supplements.)

Product Review

CBD & Hemp Extract Supplements, Lotions, and Balms Review

Find the Best CBD at the Lowest Price! Learn How Much CBD (and THC) Is Really in Products and Which Are Our Top Picks.

CBD and Hemp Oils Reviewed by

Clinical Update


Fish Oil Helps in Schizophrenia

A study found that concentrated fish oil greatly reduced symptoms in more people who had recently experienced a first episode of schizophrenia than did a placebo. The greatest effect was on depressive symptoms, which is consistent with other studies which have shown fish oil to reduce depression, particularly in people who do not regularly eat fish.

This impact on depression has also been suggested as one reason why fish oil has shown some benefit in people with cognitive decline. Details about the studies and products used, including our tests and reviews of similar fish oil supplements, are found in the Fish Oil and Omega-3 Fatty Acid Supplements Review >>

Product Review

L-Theanine Supplements Review

Find the Best L-Theanine Supplement. Find Out If L-Theanine Helps for Stress and Which Products Are Best.

L-Theanine Supplements reviewed by

Product Review

Fish Oil, Krill Oil, and Algal Oil Omega-3 (DHA & EPA) Supplements Review

Find the Best Fish Oil & Compare to Prescription Omega-3 Drugs. See Our Top Picks Among Fish Oil & Other Omega-3 Supplements for Adults, Children and Pets.

Fish Oil and Other Marine Oil Supplements Reviewed by

CL Answer

What are the side effects of melatonin supplements?

Melatonin side effects - are there any? Read about drowsiness, dizziness, headache, nausea, mood & behavior, the risk of fractures and others.'s answer explains.

Melatonin Supplements Reviewed by

Product Review

DHEA Supplements Review

Choose the Best DHEA Supplement. Beware of Big Differences in Dose and Price.

DHEA Supplements Tested by

Product Review

NAC (N-Acetyl Cysteine) Supplements Review

Choose the Best N-Acetyl Cysteine Supplement. See Our Tests of Popular NAC Supplements and Top Picks for Quality and Value.

N-acetyl cysteine (NAC) supplements tested by

Product Review

Ashwagandha Supplements Review

Find the Best Ashwagandha Supplement. Only 56% of Ashwagandha Products Pass Tests.

Ashwagandha supplements reviewed by

CL Answer

Can glycine improve sleep or reduce nighttime urinary frequency?

Can glycine really help improve sleep? Lean more about glycine and its uses and benefits.

Glycine for Sleep and Nighttime Urinary Frequency? -- Older Man Sitting on Bed, Awake at Night

Product Review

Melatonin Supplements Review

Find the Best Melatonin Supplements. Trouble Sleeping? See CL's Tests of Melatonin Supplements and Top Picks.

Melatonin Supplements Reviewed by

News Release


Round-up of Recent Product Tests by -- Results for B Vitamin Supplements & Energy Drinks, Garlic, NAC (N-acetyl cysteine), Iron and Omega-7 Fatty Acids

White Plains, New York, December 9, 2014 — In recent months, has published test results for a variety of popular supplements, including B vitamins supplements and energy drinks, NAC (N-acetyl cysteine), iron and garlic. In addition, ConsumerLab.

Recalls & Warnings


FTC Crackdown on Six Deceptive CBD Products

On December 17, 2020, the FTC announced that it is taking action against six companies for selling CBD products with unsupported and deceptive health claims that they can treat a variety of conditions, including cancer, heart disease, hypertension, Alzheimer's disease, and others.

Recalls & Warnings


Maker of Garcinia, Joint Supplements and More Warned for Manufacturing Violations, Drug Claims

On March 25, 2015, the FDA issued a warning letter to JW Nutritional LLC, following a facility inspection which found the company's products, including  Vanish V2 Domestic, Mr.

Recalls & Warnings


Seller of B Vitamins, CoQ10, Amino Acids and Other Supplements Warned for Manufacturing Violations and Drug Claims

On April 1, 2014, the FDA issued a warning letter to Bio-Recovery, Inc.

Recalls & Warnings


Seller of CoQ10, Anxiety Supplements and More Warned for Manufacturing Violations, Drug Claims

On June 6, 2015, the FDA issued a warning letter to Country Doctor Herbals, following a facility inspection which found the company's products, including  Herbal Flu Be-Gone, Herbal Multi-Bac, Herbal Nervine, Herbal Pain-A-Way, Herbal Pancreas, Herbal Parasite Cleanse, Herbal Perfect ...

Recalls & Warnings


Marketers of Diabetes Supplement Banned From Claiming Products Treat or Cure Diseases

On August 10, 2006, the Federal Trade Commission (FTC) announced that an operation selling Chinese herbal supplements is banned from claiming its products treat or cure diseases, to settle FTC charges it violated a previous court order.

Recalls & Warnings


Marketers of Brain-Rejuvinating Supplement Settle FTC Charges of False Claims

On January 5, 2005, the U.S. Federal Trade Commission (FTC) announced that a company that heavily advertised an herbal dietary supplement called "Sagee" to the Chinese-language and Vietnamese-language communities had settled FTC charges of making false and unsubstantiated claims for the product.