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Product Review

SAMe (S-adenosyl-methionine) Supplements Review

Choose the Best SAMe Supplement and Save Money

SAMe 2024 v2

CL Answer

What is inositol hexaphosphate (IP6) and myo-inositol? Are they helpful in treating cancer or other conditions?

Inositol hexaphosphate (IP6): Find out if IP6 (also known as phytic acid) can prevent or treat cancer. Clinical evidence, dosage, safety and how IP6 differs from myo-inositol. Consumerlab.com's answer explains.

Wooden spoon filled with white inositol capsules

Product Review

Low-Dose Lithium Supplements Review

Choose the Best Low-Dose Lithium Supplement. CL Tests Reveal Which Low-Dose Lithium Supplements Offer the Best Quality and Value.

Very Low Lithium Supplements Reviewed by ConsumerLab.com

Product Review

Garcinia Cambogia (HCA) Supplements Review

Find the Best Garcinia Cambogia Supplement. Choose Carefully! Most Garcinia (HCA) Weight Loss Supplements Lack Listed Amount of Ingredient .

Garcinia Cambogia (HCA) Supplements Reviewed by ConsumerLab.com

Product Review

St. John's Wort Supplements Review

Find the Best St. John's Wort Supplement. Only 40% of St. John's Wort Supplements Pass Tests & Strength Varies Widely.

St John's Wort Supplements Reviewed By Consumerlab.com

Product Review

L-Glutamine Supplements Review

Find the Best L-Glutamine Supplements Based on Quality and Value. See our Top Picks.

L-Glutamine Review

CL Answer

Does methylene blue increase energy, slow aging, or improve memory?

Methylene blue is promoted for increasing energy, slowing aging, and improving memory. Find out if there is evidence for this, plus safety and side effects.

Methylene Blue 1

Product Review

Black Currant, Borage, Evening Primrose, Flax and Hemp Oil Review

Choose the Best Flaxseed and Other Oils Based on Our Tests.

Omega 3 and 6 Seed Oil Review 2025

CL Answer

Are light boxes effective for preventing and treating seasonal affective disorder (SAD), also known as "winter depression," or circadian rhythm disorders such as jet lag? Which light boxes are best?

Learn about the benefits and safety of light boxes (including who is most likely to benefit), how to use these devices, which commercially available products appear to meet the technical requirements, and who should not use light boxes.

Man reading a book while sitting in front of a light box

Product Review

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

See Our Omega-3 Top Picks and Avoid Rancid Fish Oils.

Fish Oil and Other Marine Oil Supplements Reviewed by ConsumerLab.com

Product Review

Milk Thistle Supplements Review

Find the Best Milk Thistle Supplement. Tests and Reviews of Popular Milk Thistle Supplements & CL's Top Picks.

Milk Thistle and Liver Formula 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

CL Answer

Are lithium orotate supplements as effective and safe as prescription lithium for bipolar disease and depression?

Lithium orotate supplement info, including proper dosage, safety, and how lithium orotate supplements compare to prescription lithium for bipolar disease and depression.

Lithium Orotate Supplement Bottle

Product Review

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

Do Creatine and BCAAs Really Improve Strength and Recovery?

CL Answer

What are the best supplements for depression and anxiety?

Best natural supplements for depression and anxiety, including the evidence for fish oil, vitamin D, probiotics, and herbal supplements for depression such as curcumin (from turmeric) and saffron.

Best Supplements for Depression and Anxiety -- sad young woman sitting on couch, looking toward the window

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

Can fluoride in toothpaste, mouth rinses or drinking water cause attention-deficit/hyperactivity disorder (ADHD) or other neurodevelopmental disorders in children?

Find out if community water fluoridation increases the risk of attention-deficit/hyperactivity disorder (ADHD) or causes lower IQ in children, and learn what the American Dental Association recommends when using fluoride-containing toothpaste and mouth rinses in children.

Small amount of toothpaste being applied to a toothbrush with a glass of water in the background

CL Answer

What is Lipo-flavonoid and does it work for tinnitus or other ear problems?

Lipo-flavonoid Plus info, including ingredients & reliability of claims to improve ear ringing (tinnitus), vertigo, ear aches, ear infection, and Meniere's disease.

Lipo-Flavonoid & Ear Problems -- Man with ear pain

CL Answer

Have any supplements been shown to increase women's libido?

Learn more about supplements that may increase women's libido, including DHEA and maca.

Couple 1400

CL Answer

L-Tyrosine: Health Effects and Safety

Tyrosine has been evaluated for conditions including physical and mental stress, phenylketonuria (PKU), depression, and attention deficit-hyperactivity disorder (ADHD). Find out if it works and if it's safe.

White tyrosine capsules on blue table

CL Answer

Are L-carnosine supplements helpful and safe?

Learn about the potential health benefits of L-carnosine, as well as possible safety concerns, drug interactions and cost.

Capsules with white powder and spoon holding white powder on white background

CL Answer

What are the health benefits of zinc carnosine, also called polaprezinc, and is it safe?

Find out if zinc carnosine is beneficial for any GI conditions, including stomach ulcers, Helicobacter pylori infection, taste disturbances, aspirin-induced small-bowel injury and oral mucositis, and learn if it is safe.

Zinc carnosine supplements in wooden spoon in front of oysters

News Release

August 23, 2017

ConsumerLab.com Tests Reveal Best Low-Dose Lithium Supplements for "Mood"

White Plains, New York, August 23, 2017 — As a prescription medication, the mineral lithium is used to treat bipolar disease and other mood disorders, but some may be surprised to learn that lithium is also sold as a dietary supplement — although in much lower doses than provided by ...

Recalls & Warnings

May 23, 2015

Seller of Magnesium, Calcium, Silver and More Warned for Manufacturing Violations, Drug Claims

On May 8, 2015, the FDA issued a warning letter to Pick and Pay, Inc.

Recalls & Warnings

February 22, 2021

FDA Warns Seller of Melatonin & Other Sleep Supplements

On February 18, 2021, the FDA issued a warning letter to SANA Group LLC following a review of the company's website, which found statements made about the company's products Sleep Sana Sleep Drops and Sleep Shots to be drug claims.

Recalls & Warnings

May 03, 2013

Maker of Omega-3, Saw Palmetto, St. John’s Wort Supplements And More Warned For Manufacturing Violations and Drug Claims

On March 19, 2013, the FDA issued a warning letter to Sunset Natural Products Inc.

Recalls & Warnings

December 22, 2021

FDA Warns Seller of Liquid Magnesium, B-12, Berberine & More

On December 9, 2021, the FDA issued a warning letter to Wholly Liquid Nutritional Supplements LLC because it found statements on the company's website and social media about its products, including SpiroLaze, BioLaze, LiquiLaurin, VIT-B12, DeStress, and Omega Plus, to be ...

Recalls & Warnings

May 08, 2021

FDA Warns Seller of Vitamins B12, C, D, and K

On April 7, 2021, the FDA issued a warning letter to Unived Inc following a review of the company's websites, which found statements made about the company's products Unived brand Colox, CalDveg, B12+D3, and D3+K2-7 to be drug claims.

Recalls & Warnings

February 16, 2021

Seller of BioCBD+ Products Warned for COVID-19 and Drug Claims

On February 11, 2021, the FDA issued a warning letter to Evolved Ayurvedic Discoveries, Inc.

Recalls & Warnings

August 15, 2017

Protein Supplements Can Be Dangerous in People with Rare Genetic Disorder

It was recently reported by Yahoo Australian News (August 14, 2017) that a 25-year-old woman died after taking protein supplements and eating protein-rich foods such as lean meats and egg whites in preparation for a fitness competition.

Recalls & Warnings

January 13, 2015

Seller of Speech Disorder Supplement Agrees to Settle FTC Charges of Deceptive Claims

NourishLife, LLC, seller of supplements promoted for treating children's speech disorders, has agreed to pay $200,000 in order to settle FTC charges that claims made on the company's website and in brochures were deceptive and not supported by science.

Recalls & Warnings

March 16, 2006

Garden of Life, Maker of Primal Defense, Settles FTC Charges

On March 9, 2006, The Federal Trade Commission (FTC) announced that an operation that marketed dietary supplements sold at Whole Foods Market, GNC, the Vitamin Shoppe, and on the Internet settled FTC charges that they made deceptive advertising claims about their supplements.

Recalls & Warnings

April 29, 2012

FDA Says DMAA Can't Be Sold as a Supplement -- Warns Sellers

On April 27, 2012, the U.S.

Recalls & Warnings

June 27, 2007

Warning Labels to be Required for Green Tea and Black Cohosh Products

On June 26, 2007, the U.S. Pharmacopeia (USP) Dietary Supplements Information Expert Committee (DSI-EC) voted to require cautionary statements on the labels for green tea extracts and black cohosh dietary supplements.

Recalls & Warnings

September 10, 2014

Seller of Joint Pain Supplement Warned for Drug Claims

On August 24, 2014, the FDA issued a warning letter to CreAgri, Inc., following a website review, which found statements made about the company's products, including Olivenol plus Easeflex, Olivenol plus Essence Capsules, and Olivenol plus Essence Elixer, to be drug claims.

Recalls & Warnings

April 17, 2018

FDA Warns Seller of Echinacea, Iron, Aloe Supplements & More for Manufacturing Violations

On March 30, 2018, the FDA issued a warning letter to Ozark Country Herbs following a facility inspection which found a number of the company's products, including Echinacea-Goldenseal, Natural Iron, and Aloe-Vera Goldenseal Salve, to be adulterated because they were prepared, packed, or held under ...

Recalls & Warnings

January 26, 2018

Seller of Coenzyme-A Warned For Making Drug Claims

On January 5, 2018, the FDA issued a warning letter to Coenzyme A, Inc. following a facility inspection and review of the company's website that found the company made drug claims about its product Coenzyme-A.

Recalls & Warnings

May 14, 2014

Maker of Mood, Smoking Cessation Supplements and More Warned for Violations, Drug Claims

On April 17, 2014, the FDA issued a warning letter to CDJ Holding, Incorporated, d.b.a.

Recalls & Warnings

May 10, 2013

Maker of Concentration, Pain, Immune, Cholesterol Supplements Warned For Drug Claims

On April 24, 2013, the FDA issued a warning letter to EuroPharma Co., Inc., following a review of the company's website which found statements made about Calm Kids, CholestCaps, CuraMed 375 mg, CuraMed 750 mg, Curamin, Mental Advantage, Tri-Iodine, and Viragen to be drug claims.

Recalls & Warnings

August 08, 2013

Sleep Supplement Recalled Due To Undeclared Drugs

On August 7, 2013, Health and Beyond LLC issued a voluntary recall of dietary supplement Tranquility because it was found to contain traces of undeclared drugs, Doxepin and Chlorpromazine.

Recalls & Warnings

December 05, 2012

Hydroxycut Class Action Lawsuit To Be Settled

Iovate Health Sciences Inc. has agreed to a settlement of $25.3 million, pending final court approval, in a class action lawsuit that alleged the company deceived consumers about the safety of its Hydroxycut weight loss supplements.

Recalls & Warnings

November 14, 2012

Maker of Vitamin C, Aloe and Sexual Enhancement Supplements Warned for Drug Claims and Misbranding

On October 22, 2012, the FDA issued a warning letter to Health Breakthroughs International, LLC after a review of the company's product labels and website found the dietary supplements Amazing C, MPS-Gold 100 and Power Herbal Formula to be promoted as drugs.

Recalls & Warnings

October 17, 2012

Herbal Supplement Company Warned For Manufacturing Violations and Drug Claims

On October 2, 2012, the FDA issued a warning letter to Amazing Herbs Nutraceuticals following a facility inspection which found violations of Current Good Manufacturing Practices (CGMPs) for dietary supplements.

Recalls & Warnings

June 01, 2012

Homeopathic Manufacturer Settles False Advertising Suit

June 1, 2012 — A federal court in California recently authorized the settlement of a class action lawsuit against Boiron Inc. and Boiron USA, Inc.

Recalls & Warnings

May 12, 2018

Seller of Maca Powder Warned for Drug Claims

On April 18, 2018, the FDA issued a warning letter to Herbs America, Inc. following review of the company's website, and the company's Maca Magic store on www.amazon.