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Product Review

L-Citrulline Supplements Review

Learn How Citrulline Products Differ and Our Top Picks

L-Citrulline Review 2023

Product Review

Phosphatidylserine (PS) Supplements

Find out if phosphatidylserine helps with memory and which products are best.

Phosphatidylserine Review 2024

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 ConsumerLab.com

Product Review

Choline and Lecithin Supplements Review (Including Phosphatidylcholine, CDP-Choline, and Alpha-GPC)

Choose the Best Choline Supplement. Find Out How Much Choline Popular Supplements Really Provide.

Product Review

Berberine and Goldenseal Supplements Review

Tests Reveal the Best and Worst Berberine and Goldenseal Products

Product Review

Protein Powders, Shakes, and Meal Replacements Review

Find Out Which Protein Products Passed or Failed Our Tests

Product Review

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

Do Creatine and BCAAs Really Improve Strength and Recovery?

Product Review

D-Mannose Supplements

Find out if D-mannose helps prevent urinary tract infections and how products compare.

D-Mannose Review 2023

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.

Clinical Update

10/27/2023

Information to Avoid Counterfeits Added for 7 Brands

We've added information about how to safely purchase products from Bragg, Centrum, Gaia Herbs, Host Defense, Nutricost, Vital Proteins, and Vitamin Shoppe to our article about Where to Safely Buy Real Vitamins and Supplements. The list now covers 39 brands.

CL Answer

Does Bacopa extract improve memory, mood, or sleep? Is it safe?

Find out if bacopa improves memory and cognition, mood or sleep, and whether it's been shown to be helpful in people with Alzheimer's disease or dementia. Plus, learn about the safety and common side effects of bacopa.

Bacopa for Memory and Cognition -- Bacopa leaves and powder

Product Review

B Vitamin Supplements Review (B Complexes, B6, B12, Biotin, Folate, Niacin, Riboflavin & More)

See Our Top Picks and Which 5 Failed Testing

B Vitamins Review 2024

CL Answer

Where to Safely Buy Real Vitamins and Supplements Online, Not Fakes or Counterfeits

ConsumerLab explains how to avoid counterfeit vitamins and supplements when shopping online on Amazon, Walmart.com, and other sites. Learn to identify authorized sites and sellers and avoid fake supplements. Use the brand-by-brand guide to protect yourself from risk.

Woman in Orange Sweater

News Release

February 25, 2024

Top-rated Vitamin and Supplement Brands and Merchants for 2024 Based on Consumer Satisfaction

White Plains, New York, February 25, 2024 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on over 10,000 responses collected in November/December 2023.

News Release

January 12, 2024

ConsumerLab Tests Prompt Product Recall of Memory Supplements

White Plains, New York, January 12, 2024 —  Phosphatidylserine supplements are often promoted to improve memory and brain function, but do they really work, and if so, which products on the market are best? To find out, ConsumerLab carefully reviewed the clinical evidence, and selected, ...

News Release

December 14, 2023

Best D-Mannose Supplements for UTIs? ConsumerLab Selects Its Top Picks

White Plains, New York, December 14, 2023 —  D-mannose, a naturally occurring sugar, is often taken as a supplement to help prevent or treat urinary tract infections, although more research is needed to prove it’s effective.

CL Answer

What is TUDCA (tauroursodeoxycholic acid)? Does it have any proven health benefits, and is it safe?

TUDCA information, including its potential health benefits, safety, possible interactions, and cost.

What is Tudca - white capsules poured out of container

CL Answer

Do any supplements help with restless legs syndrome?

Find out whether supplements or vitamins like iron, magnesium, vitamin E and others can help for restless leg syndrome (RLS). ConsumerLab.com's answer explains.

Supplements for Restless Legs Syndrome

News Release

September 14, 2023

Best and Worst Berberine and Goldenseal Supplements, According to ConsumerLab Tests

White Plains, New York, September 14, 2023 —  Recent ConsumerLab tests revealed problems with nearly 45% of the berberine and goldenseal supplements selected for testing. Powders and capsules containing goldenseal (which naturally contains berberine) were particularly likely to have issues.

News Release

June 08, 2023

Best Muscle and Workout Supplements With Creatine or BCAAs, According to ConsumerLab Tests

White Plains, New York, June 8, 2023 — Creatine supplements are promoted to increase muscle size, strength, and endurance, while supplements with branched-chain amino acids (BCAAs) are promoted to improve exercise recovery.

News Release

February 25, 2023

Top-rated Vitamin and Supplement Brands and Merchants for 2023 Based on Consumer Satisfaction

White Plains, New York, February 25, 2023 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 8,600 responses collected in November/December 2022.

News Release

June 30, 2022

Best Protein Shakes & Drinks According to ConsumerLab Tests. Lead, Excess Sodium Found in Some

White Plains, New York, June 30, 2022 — Consumers may get more sodium, fat, calories, or even lead, than they bargained for from some protein supplements, according to recent ConsumerLab tests of over 20 popular protein powders and shakes.

News Release

June 14, 2022

Best B Complexes, B12, and Other B Vitamin Supplements Revealed by ConsumerLab Tests: Beware of High Doses

  White Plains, New York, June 14, 2022 — Recent ConsumerLab tests of over 30 popular vitamin B complexes and supplements revealed that four products contained either much less, or much more, of at least one B vitamin listed on the label.

News Release

February 25, 2022

Top-rated Vitamin and Supplement Brands and Merchants for 2022 Based on Consumer Satisfaction

White Plains, New York, February 25, 2022 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 8,049 responses collected in November/December 2021.

News Release

February 25, 2021

Top-rated Vitamin and Supplement Brands and Merchants for 2021 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users

White Plains, New York, February 25, 2021 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 9,647 responses collected in November 2020.

News Release

February 25, 2020

Top-rated Vitamin and Supplement Brands and Merchants for 2020 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users

White Plains, New York, February 25, 2020 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 9,782 responses collected in late November and early December 2019.

News Release

March 11, 2019

Best NAC (N-acetyl cysteine) Supplements Identified by ConsumerLab

White Plains, New York, March 11, 2019 — NAC (N-acetyl cysteine) supplements are promoted for many uses, including "liver support," "immune support," and reducing symptoms of the flu and flare-ups of chronic bronchitis.

News Release

January 21, 2018

Best Apple Cider Vinegar? Beware of Poison! -- ConsumerLab.com Tests Reveal the Best and Worst Apple Cider Vinegars and Pills and Why Some Could Be Dangerous

White Plains, New York, January 21, 2018 — Apple cider vinegar is promoted as a safe and natural remedy for everything from lowering blood sugar and losing weight to improving digestion and treating infections.