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20% of Vitamin C Supplements Fail Testing - Learn How To Choose and Best Use Vitamin C
Zinc Lozenges and Supplements? See CL's Top Picks - Zinc Lozenges and Supplements? See CL's Top Picks
Find the Best Tuna and Salmon and Avoid Mercury - Find the Best Tuna and Salmon. Labels Won't Tell, But We Will.
Big Differences in Turmeric and Cucurmin Products - How to Choose the Best Turmeric & Curcumin
Which CoQ10 & Ubiquinol Supplements Are Best - Find the Best CoQ10 & Ubiquinol
Learn How Much CBD Is Really in CBD Oils & Hemp Extracts - Find the Best CBD Oils & Hemp Extracts
Best Fish & Marine Oils - Similar to Omega-3 Prescription Drugs - How to Get the Right Omega-3s from Fish, Krill & Other Oil Supplements
Problems with 46% of Multivitamins - Particularly Gummies - New Findings for Women's, Men's, Children's & Pets' Multis
Joint Pain? See Our Top Supplement Picks - Some Problems Among Supplements for Joint Pain
Find the Best Apple Cider Vinegar and Avoid Problems - Some Can Be Poison
The Best Melatonin Supplements and How to Use Them - The Best Melatonin Supplements
The Best & Worst Magnesium Supplements - Avoid Magnesium Supplements With Problems
Is Your Dark Chocolate or Cocoa Healthful or Toxic? - Find Out What's Really in Your Dark Chocolate and Cocoa
The Best Iron Supplements Identified by ConsumerLab - How to Get Iron from the Best Iron Supplements
Find Out Which Extra Virgin Olive Oils Rated Best - Some "Extra Virgin" Olive Oils May Not Be
41 Probiotic Supplements and Drinks Tested - See Our Tests of Popular Probiotics and CL's Top Picks
See Which Protein Powders and Drinks Rated Best - Popular Protein Powders, Shakes and Drinks Reviewed
What's Really In Green Tea? - See Our Top Picks for Green Tea Supplements, Teas, and Drinks
Find Out Which Calcium Rated Best and If You Need It - Check the Quality of Calcium Supplements
Find the Best Lipoic Acid Supplement at the Right Price - Alpha-Lipoic Supplements Found to Range 1,000% in Cost!
See Which Vision Supplement Is Best for You - Which Vision Supplement Is Right for You?
Resveratrol: Worth Taking? Best Supplements? - 19 Resveratrol Supplements Reviewed
Is Your Dark Chocolate or Cocoa Healthful or Toxic? - Find Out What's Really in Your Dark Chocolate and Cocoa
See Which Protein Powders and Drinks Rated Best - Popular Protein Powders, Shakes and Drinks Reviewed
Vitamin D: Get the Right Amount and See Our Top Pick - Find the Best Vitamin D Supplements
Collagen for Wrinkles? See Our Product Reviews - Choose the Best Collagen
The Best & Worst Magnesium Supplements - Avoid Magnesium Supplements With Problems
Big Differences in Turmeric and Cucurmin Products - How to Choose the Best Turmeric & Curcumin
Find Out Which Calcium Rated Best and If You Need It - Check the Quality of Calcium Supplements
Do You Need a Vitamin K Supplement? See Our Review - Find the Best Vitamin K Supplement for You, Now!
Boron Supplements Tested -- See What We Found - Avoid Boron Supplements With Problems
See Which Vision Supplement Is Best for You - Which Vision Supplement Is Right for You?
Best & Worst Nutrition Bars and Cookies (For Protein and More) - How Does Your Nutrition Bar Stack Up?
See How Reishi Supplements Differ and Which Are Best - Reishi Mushroom Supplements Vary in Quality and Price
Which CoQ10 & Ubiquinol Supplements Are Best - Find the Best CoQ10 & Ubiquinol
19% of B Vitamins Fail Our Review. See Which Are Best. - 19% of B Vitamins Fail Our Review.
Cholesterol-Lowerers Reviewed. See Our Top Picks. - Find Out Which Supplements Can Help Lower Cholesterol
Big Differences Found Among Digestive Enzyme Supplements - Some Enzyme Labels Won't Tell You, But We Do
Best Coconut Water? See Our Tests and Comparisons - Ratings of Popular Coconut Waters -- Avoid Excess Sugar
Do You Need Selenium? See Our Top Pick. - Check Your Selenium Supplement in Our Report
Be Careful with Weight Loss Supplements! - See Results for 7-Keto DHEA, Forskolin, and Herbal Blend Supplements
Best Coconut Oil vs. MCT Oil? See How They Compare. - Find Out What's Really in Coconut and MCT Oils
Quercetin Supplements Differ - Learn Which Are Best - Best Quercetin Supplements -- and at Lowest Cost
Greens & Whole Food Powders Checked for Contaminants - Greens & Whole Food Powders Checked for Contaminants
N-Acetyl Cysteine (NAC): Does It Work? Which Are Best? - N-Acetyl Cysteine (NAC) Supplements Tested
Not All Lycopene Pills Deliver -- See How They Vary - Lycopene Supplements Vary in Quality and Price
Best Fish & Marine Oils - Similar to Omega-3 Prescription Drugs - How to Get the Right Omega-3s from Fish, Krill & Other Oil Supplements
Find the Best Tuna and Salmon and Avoid Mercury - Find the Best Tuna and Salmon. Labels Won't Tell, But We Will.
Taurine for Heart and Liver Disease in People, Dogs & Cats - Taurine for Heart and Liver Disease in People, Dogs & Cats
Joint Pain? See Our Top Supplement Picks - Some Problems Among Supplements for Joint Pain
Know When to Take Vitamin A and Which Products Are Best - Be Careful with Vitamin A Supplement Dosage!
Joint Health Supplements for Dogs and Cats - Choose Joint Supplements for Pets Carefully!
41 Probiotic Supplements and Drinks Tested - See Our Tests of Popular Probiotics and CL's Top Picks
Few Red Yeast Rice Supplements Provide Effective Dose - Some Red Yeast Rice 15X Stronger Than Others!
What's Really In Green Tea? - See Our Top Picks for Green Tea Supplements, Teas, and Drinks
Chromium Supplements: Find Out Which Are Best - Some Chromium Supplements Contain More Than You Want
Choose the Best L-Tryptophan and 5-HTP Supplements - CL Identifies High Quality L-Tryptophan Supplements and 5-HTP at the Best Value
See CL's Top Pick for Ashwagandha and Learn What It Does - See the Test Results for Ashwagandha!
Best Valerian Supplements Found in Testing - Valerian "Sleep" Supplements Vary in Key Compounds
Find the Best Bone Broth with the Most Collagen - Tests Show You Can't Always Rely on Labels
Find the Best Apple Cider Vinegar and Avoid Problems - Some Can Be Poison
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 - The Best Melatonin Supplements
Finding Real Ginkgo Isn't Easy - Many Fail Tests - Many Fail ConsumerLab's Tests of Quality
The Best Iron Supplements Identified by ConsumerLab - How to Get Iron from the Best Iron Supplements
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
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? - Find Out What's Really in Your Dark Chocolate and Cocoa
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?
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 Oils 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
Which CoQ10 & Ubiquinol Supplements Are Best - Find the Best CoQ10 & Ubiquinol
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
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
Greens & Whole Food Powders Checked for Contaminants - Greens & Whole Food Powders Checked for Contaminants
What We Found With Nattokinase Supplements May Suprise You - Nattokinase: Does It Work and Which Supplements Are Best?
Inaccurate Labels on 36% of Meal Powders & Shakes - Meal Replacement Products Tested and Compared
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
22% of Rhodiola Supplements Fail Review - Learn About Rhodiola and Our Top Picks
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
See Which Vision Supplement Is Best for You - Which Vision Supplement Is Right for You?
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!
Garlic May Help, But 40% of Supplements Fail Testing - Learn More About Garlic and Find the Best Supplements
Cholesterol-Lowerers Reviewed. See Our Top Picks. - Find Out Which Supplements Can Help Lower Cholesterol
CLA "Slimming" Supplements Tested - Less CLA Than Expected in Some Products
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
Resveratrol: Worth Taking? Best Supplements? - 19 Resveratrol Supplements Reviewed
Only 75% of Bilberry Supplements Pass Tests - Watch Out for Fake Bilberry Supplements
Not All Lycopene Pills Deliver -- See How They Vary - 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
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
Over 400 brands tested. Choose one below or see a complete list.
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