What's Really In Green Tea? See Our Top Picks! Full Review
I bought a lactose-free milk that is "calcium-fortified" and provides 50% of the Daily Value for calcium. Is that too much calcium? View Answer >>
I heard that Theracurmin, a form of curcumin, was shown to help with memory, but it's expensive. Does Theracurmin really improve memory and is it worth it? View Answer >>
Most Popular Reviews
Other Recent Reviews
Brands
Choose the Best CoQ10 & Ubiquinol -- and Save Money - CoQ10 and Ubiquinol Differ in Quality, Absorption & Cost
31% of Turmeric/Curcumin Products Fail CL's Tests - How to Choose the Best Turmeric & Curcumin
What's Really In Green Tea ? See Our Top Picks! - What's Really In Green Tea? See Our Top Picks!
Best and Worst Quality Magnesium Supplements Identified - Avoid Magnesium Supplements With Problems
Best Fish Oil ? See Our New Tests and Comparisons - How to Get the Right Omega-3s from Fish, Krill & Other Oil Supplements
28% of Protein Powders Flunk Quality Tests - Popular Protein Powders, Shakes and Drinks Reviewed
Best and Worst B Vitamins Revealed - Many B Vitamin Labels Found To Be Misleading
41 Probiotic Supplements and Drinks Tested - 41 Probiotic Supplements and Drinks Tested
Find a CL Approved Supplement with Glucosamine, Chondroitin, MSM, or Boswellia - Some Problems Among Supplements for Joint Pain
20% of Vitamin C Supplements Fail Testing - Learn How To Choose and Best Use Vitamin C
Is Your Dark Chocolate or Cocoa Healthful or Toxic? - Is Your Dark Chocolate or Cocoa Healthful or Toxic?
The Best Melatonin Supplements and How to Use Them - See Our Product Tests and Expert Tips
Find Out Which Calcium Rated Best and If You Need It - Check the Quality of Calcium Supplements
Most Garcinia (HCA) Supplements Fail CL's Tests - Garcinia Weight Loss Supplements Found Lacking
Find the Best Lipoic Acid Supplement at the Right Price - Alpha-Lipoic Supplements Found to Range 1,000% in Cost!
Lutein, Zeaxanthin and Vision Formulas Vary Widely - Which Vision Supplement Is Right for You?
Resveratrol : Worth Taking? Best Supplements? - 19 Resveratrol Supplements Reviewed
Learn How Much CBD Is Really in Hemp Oils & Pills - Find the Best CBD & Hemp Oils and Pills
Problems with 46% of Multivitamins - Particularly Gummies - New Findings for Women's, Men's, Children's & Pets' Multis
The Best Melatonin Supplements and How to Use Them - See Our Product Tests and Expert Tips
Finding Real Ginkgo Isn't Easy - Many Fail Tests - Many Fail ConsumerLab's Tests of Quality
Best Fish Oil ? See Our New Tests and Comparisons - How to Get the Right Omega-3s from Fish, Krill & Other Oil Supplements
The Best Iron Supplements Identified by ConsumerLab - How to Get Iron from the Best Iron Supplements
Best and Worst Quality Magnesium Supplements Identified - Avoid Magnesium Supplements With Problems
Berberine and Goldenseal - Avoid Fakes! - Berberine and Goldenseal - Do They Work? Best Brand?
Is Your Oil Supplement Fresh? Flaxseed, Hemp and More - Is Your Oil Supplement Fresh? Flaxseed, Hemp and More
Be Sure You're Avoiding Problems with Vitamin D - Find the Best Vitamin D Supplement
Zinc Lozenges and Supplements ? See CL's Top Picks - Zinc Lozenges and Supplements? See CL's Top Picks
Is Your Dark Chocolate or Cocoa Healthful or Toxic? - Is Your Dark Chocolate or Cocoa Healthful or Toxic?
Find the Best Lithium Supplement Based on Independent Tests - Find the Best Lithium Supplement Based on Independent Tests
Find the Best Creatine and BCAA Supplements - Avoid Pitfalls with Muscle Supplements
L-Arginine - Does it Work? Best Brand? - L-Arginine - Does it Work? Best Brand?
Find Out Which Calcium Rated Best and If You Need It - Check the Quality of Calcium Supplements
Does Your Vitamin K Supplement Contain What It Claims? - Find the Best Vitamin K Supplement for You, Now!
Best and Worst B Vitamins Revealed - Many B Vitamin Labels Found To Be Misleading
20% of Vitamin C Supplements Fail Testing - Learn How To Choose and Best Use Vitamin C
Half of Kelp Supplements May Not Be Safe - Caution with Kelp Supplements!
Find Out Which Extra Virgin Olive Oil s Rated Best - Some "Extra Virgin" Olive Oils May Not Be
Best Choline Supplement ? See Our Comparisons of Popular Brands - Find Out Which Choline is Rated Best
Choose the Best CoQ10 & Ubiquinol -- and Save Money - CoQ10 and Ubiquinol Differ in Quality, Absorption & Cost
Find the Best Lipoic Acid Supplement at the Right Price - Alpha-Lipoic Supplements Found to Range 1,000% in Cost!
50% of Aloe Products Fail Testing - Choose Aloe Pills, Gels, and Drinks Carefully!
Arsenic Found in a Potassium Supplement - Tests and Comparisons of Potassium Supplements
Astaxanthin - Does It Help? Best Brands? - Find Out How to Get Top Quality Astaxanthin at Lower Cost
Resveratrol : Worth Taking? Best Supplements? - 19 Resveratrol Supplements Reviewed
Oats Checked for Toxin and Gluten - See Our Results for Steel-Cut, Rolled, O's, and Other Oat Cereals
Only 40% of St. John's Wort Supplements Pass Tests - 20,000% Difference in Strength of Herbal Antidepressants
Contaminants Found in Greens and Whole Food Powders - Several Greens/Whole Food Products Fail Tests
What We Found With Nattokinase Supplements May Suprise You - Nattokinase: Does It Work and Which Supplements Are Best?
Find a CL Approved Supplement with Glucosamine, Chondroitin, MSM, or Boswellia - Some Problems Among Supplements for Joint Pain
Inaccurate Labels on 36% of Meal Powders & Shakes - Meal Replacement Products Tested and Compared
28% of Protein Powders Flunk Quality Tests - Popular Protein Powders, Shakes and Drinks Reviewed
Tests Show Large Difference Among Ginger Supplements and Ales - Get the Right Ginger
80% of Milk Thistle Supplements Fail Tests of Quality! - Most Milk Thistle/Liver Formula Products Low in Key Component
Many Failures Among Supplements for Joint Disease in Dogs and Cats - Choose Joint Supplements for Pets Carefully!
22% of Rhodiola Supplements Fail Review - Learn About Rhodiola and Our Top Picks
Is Your Dark Chocolate or Cocoa Healthful or Toxic? - Is Your Dark Chocolate or Cocoa Healthful or Toxic?
Echinacea for Colds - Which Supplements Are Best? - Tests of Echinacea Pills and Liquids
Lysine Supplements for People and Pets Tested and Compared - Does Lysine Work for Cold Sores? Which Product Are Best?
Be Sure Your SAM-e Passed and You're Not Overpaying - SAM-e for Osteoarthritis and Depression Tested
Major Differences Discovered Among Cinnamon Supplements and Spices - Be Careful Choosing Cinnamon
Lutein, Zeaxanthin and Vision Formulas Vary Widely - Which Vision Supplement Is Right for You?
41 Probiotic Supplements and Drinks Tested - 41 Probiotic Supplements and Drinks Tested
What's Really In Green Tea ? See Our Top Picks! - What's Really In Green Tea? See Our Top Picks!
Problems Found Among Prostate Supplements - Find a CL Approved Supplement That May Help with Prostate Symptoms
Do You Need Vitamin E ? Which Supplements Are Best? Find Out - Get the Scoop on Vitamin E and Product Ratings & Comparisons
L-Theanine -- Does It Reduce Stress? Which Brands Are Best? - Learn About L-Theanine and the Differences in Supplements
Learn Which Maca Supplements Passed or Failed CL Testing and the Evidence Behind Maca - Tests of Maca -- Popular for Stamina / Sexual Enhancement
Find Out Which Soy Isoflavone, Red Clover, Black Cohosh, or Progesterone Products Have What You Want! - Tests Reveal What's Really In Menopause Supplements
DHEA Supplements -- Do They Reverse Signs of Aging? - Use and Choose DHEA Supplements Carefully!
Best and Worst Quality Magnesium Supplements Identified - Avoid Magnesium Supplements With Problems
The Best Melatonin Supplements and How to Use Them - See Our Product Tests and Expert Tips
How Active Is Your Digestive Enzyme Supplement ? - Some Enzyme Labels Won't Tell You, But We Do
Choose the Best CoQ10 & Ubiquinol -- and Save Money - CoQ10 and Ubiquinol Differ in Quality, Absorption & Cost
Cod Liver Oil, Beta-carotene, Other Vitamin A Supplements Reviewed - Be Careful with Vitamin A Supplement Dosage!
75% of Ashwagandha Supplements Fail Review - See the Test Results for Ashwagandha!
Garlic May Help, But 40% of Supplements Fail Testing - Learn More About Garlic and Find the Best Supplements
The Best Iron Supplements Identified by ConsumerLab - How to Get Iron from the Best Iron Supplements
Find the Best NAC Supplements at Lowest Cost - N-Acetyl Cysteine (NAC) Supplements Tested
What's in Red Yeast Rice Supplements ? Labels Won't Tell, But We Will - Some Red Yeast Rice 500X Stronger Than Others!
Find Out Which Cholesterol Lowering Supplements Are Best! - Some Supplements Can Help Lower Cholesterol and Reduce the Risk of Heart Disease
50% of Chromium Supplements Fail Quality Tests - Some Chromium Supplements Contain More Than You Want
CLA "Slimming" Supplements Tested - Less CLA Than Expected in Some Products
Which Weight Loss Supplements Work and Passed Testing? - See Results for Herbal Blends and 7-Keto DHEA Weight Loss Supplements
Most Garcinia (HCA) Supplements Fail CL's Tests - Garcinia Weight Loss Supplements Found Lacking
25% of Ginseng Supplements Low in Strength - Tests and Comparisons of Korean, Chinese & American Ginseng
Tests of Valerian Supplements -- Two Fail for Lead - Valerian "Sleep" Supplements Vary in Key Compounds
See Our Picks for Protein, Energy, Fiber & Whole Food Bars - How Does Your Nutrition Bar Stack Up?
Resveratrol : Worth Taking? Best Supplements? - 19 Resveratrol Supplements Reviewed
Arsenic Found in a Potassium Supplement - Tests and Comparisons of Potassium Supplements
Only 75% of Bilberry Supplements Pass Tests - Watch Out for Fake Bilberry Supplements
Test Results for 13 Lycopene Supplements - Lycopene Supplements Vary in Quality and Price
Find Out Which Green Coffee Bean Extracts Passed or Failed - 50% of Green Coffee Supplements Lack Expected Ingredients for Weight Loss
Not All Selenium Supplements Deliver Promised Ingredient - Check Your Selenium Supplement in Our Report
Huperzine A Supplements -- Potential Help for Alzheimer's Disease - Find Out Which Huperzine A Supplements Are CL Approved
Acetyl-L-Carnitine Supplements Tested - Quality is High, But So Are Prices -- We Found the Best Value
Lactose Intolerance Products Found to Vary in Strength and Cost - Can Lactose-Free Milk and Supplements Help with Intolerance?
They're Popular in the Gym, But Can Nitric Oxide Supplements Help You? - Do Nitric Oxide Supplements Work?
Find Out Which Male and Female Enhancement Supplements Passed or Failed - Only 30% of Selected Sexual Enhancement Supplements Pass Quality Tests
L-Tryptophan Supplements are Back -- But Are They Safe? Do They Work?
Over 400 brands tested. Choose one below or see a complete list.
Sign up for FREE Newsletter
Find out the right amount of a vitamin or mineral to get each day.
Valerian Supplements
Ashwagandha Supplements
L-Tryptophan and 5-HTP
Joint Health Supplements
Chromium Supplements
Fish, Algae, Krill Oils & Canned Tunas
... and More!
