Product Reviews Found:
* = Search term may appear only in full report available to members. Sign in or Join now.
1.Sleep supplements in CBD & Hemp Extract Supplements, Lotions, and Balms Review *
2.Sleep supplements in Zinc Supplements and Lozenges Review *
3.Sleep supplements in Vitamin D Supplements Review (Including Calcium, Vitamin K, Magnesium, and Boron) *
4.Sleep supplements in L-Theanine Supplements Review *
5.Sleep supplements in CoQ10 and Ubiquinol Supplements Review *
6.Sleep supplements in L-Tryptophan and 5-Hydroxytryptophan (5-HTP) Supplements
7.Sleep supplements in Melatonin Supplements Review
8.Sleep supplements in Protein Powders, Shakes, and Drinks Review *
9.Sleep supplements in Valerian Supplements Review
10.Sleep supplements in Human Growth Hormone (HGH) and Insulin-like Growth Factor-1 (IGF-1) Supplements Review Article
11.Sleep supplements in Quercetin Supplements Review *
12.Sleep supplements in B Vitamin Supplements Review (B Complexes, B6, B12, Biotin, Folate, Niacin, Riboflavin & More)  *
13.Sleep supplements in Maca Supplements Review *
14.Sleep supplements in Ashwagandha Supplements Review *
15.Sleep supplements in Magnesium Supplements Review (Including Calcium, Vitamins D & K, and Boron) *
16.Sleep supplements in Weight Loss Supplements Review (7-Keto DHEA, Forskolin and Stimulant Blend Supplements) *
17.Sleep supplements in Holy Basil Supplements Review *
18.Sleep supplements in Chromium Supplements Review *
19.Sleep supplements in Dark Chocolates, Cocoa & Cacao Powders, Nibs, and Supplements Review -- Sources of Flavanols *
20.Sleep supplements in Garcinia Cambogia (HCA) Supplements Review *
21.Sleep supplements in Red Yeast Rice Supplements Review *
22.Sleep supplements in Vision Supplements Review (with Lutein and Zeaxanthin) *
23.Sleep supplements in Iron Supplements Review *
24.Sleep supplements in Muscle & Workout Supplements Review (Creatine and Branched-chain Amino Acids)  *

Encyclopedia Articles Found: (Articles do not mention brands)
Membership required for all articles. Sign in or Join now.
1.Nutrition Supplements: Vitamins, Minerals, and Non-Nutrient Supplements
6.Restless Legs Syndrome
9.Lemon Balm
10.Jet Lag
... More Results Answers to Questions Found:
Membership required for some Answers. Sign in or Join now.
1.Does taking zinc help with sleep? 
2.Which supplements can help me sleep? 
3.What is the best way to take melatonin to get a good night's sleep? 
4.I take melatonin to help me fall asleep. Are there any drugs that interact with melatonin that I should be aware of ?
5.Can glycine really help improve my sleep? 
6.Can CBD help with insomnia or improve sleep? 
7.What are the side effects of melatonin supplements?
8.Is it safe to take melatonin when taking prescription sedatives or sleep aids like lorazepam (Ativan) or zolpidem (Ambien)? 
9.What are the side effects of ashwagandha supplements?
10.Which supplements have been shown to be helpful for autism? 
11.I am having trouble sleeping. I regularly take a multivitamin, fish oil, magnesium, calcium, vitamins D and K, and a protein supplement. I also take a low-dose blood pressure medication. Could any of these supplements be causing my insomnia? 
12.Can L-theanine help as a sleep aid? Will be testing these supplements? 
13.Do any supplements help for flu?
14.Do any supplements help with migraines?
15.How much calcium from supplements is too much?
16.Is aloe an effective remedy for dry eye?
17.Is CBD oil (cannabidiol) effective and safe? Is it legal?
18.What are the health benefits of holy basil extract?
19.Which supplements help to improve energy and decrease fatigue? 
20.Can taking too much vitamin B-12 be dangerous? The label on my B-complex states it contains 50,000% of the Daily Value!
21.Do arnica pills really work to prevent bruising?
22.Do melatonin supplements reduce the body's own production of melatonin?
23.Does CBD help with Parkinson's disease? 
24.I read that statins can cause diabetes. Is this true also with red yeast rice?
25.I take omeprazole (Prilosec), a proton pump inhibitor, to reduce stomach acid. Are there supplements I should avoid, or be taking, due to this drug?
26.I've heard that taking vitamin D can reduce your natural production of melatonin and interfere with sleep. Is this true? 
27.Is it true that I should not keep magnesium supplements in a daily pill pack mixed with other supplements and medicines?
28.Is kratom too dangerous to use?
29.Being over 50 years old, I'm looking to take a vitamin B-12 supplement. I see that many contain a form of vitamin B-12 called cyanocobalamin, yet I read on the Internet that this form is toxic. Should I be concerned?
30.Can taking too much vitamin B-6 be dangerous? The label on my multivitamin states it contains 2000% of the Daily Value!
31.Do any supplements help for restless legs syndrome? 
32.Do any supplements help with nerve pain, like sciatica or diabetic neuropathy?
33.How are you staying healthy during the coronavirus pandemic?
34.I've heard that melatonin may increase the risk of broken bones. I take melatonin regularly. Should I be concerned? 
35.Is it true that overdoses of vitamin D only occur when you don't get enough vitamin K? 
36.Is there a lab test that can measure CoQ10 in the blood? Can it help to determine the dosage I should take for a certain condition, like heart failure?
37.Which supplements can help with indigestion and/or heartburn?
38.Can melatonin help with stomach pain? 
39.What are the best supplements for depression and anxiety? 
40.What are the health benefits of tart cherry juice? 
41.What are the symptoms of vitamin D deficiency? 
42.Do any supplements help for tinnitus? Is it true that some supplements can cause tinnitus? 
43.What are the side effects of magnesium supplements?
44.Do magnesium creams, sprays and oils help with muscle pain and cramps? How about supplements?  
45.Is the Resurge supplement a scam? I'm having trouble getting a refund. 
46.Does Prevagen really improve memory? 
47.Do any supplements help prevent or treat a cold? 
48.What are natural remedies for coronavirus (COVID-19)? Do supplements like zinc, vitamin C, or herbals work? 
49.What is Brain Bright and can it really improve memory or cognition? 
50.What is Noopept? Can it really improve memory and cognition, and is it safe?  
51.What is PQQ? Does it help with aging and memory? Is it similar to CoQ10?  

Clinical Updates Found:
2020 06/30/2020CBD for Sleep?
 06/06/2020Melatonin for Sleep and Parkinson's
 04/22/2020Melatonin During Chemotherapy?
 02/18/2020Saffron for Better Sleep?
 01/04/2020Foods That May Help Sleep
2019 11/09/2019Supplement for Social Anxiety?
 07/06/2019Casein Peptides for Better Sleep?
 03/19/2019Melatonin for Troubled Sleep?
 01/15/2019Anxiety Treatment -- Low-Dose CBD?
2017 11/07/2017Melatonin Improves Sleep in Children with Autism
 07/15/2017Lutein May Reduce Eye Strain and Headaches
2016 12/08/2016Vitamin D Keeping You Up?
2015 09/29/2015Melatonin Helps Post-Op Sleep
2011 09/11/2011Better Sleep with Valerian

Recalls and Warnings Found:
Membership required for all articles. Sign in or Join now.
1.Seller of CBD, Sleep Aids, and Cold & Flu Products Warned for Manufacturing Violations (06/05/2020)
2.CBD Oil Recalled, Risk of High Lead Exposure (05/16/2020)
3.FDA Warns Companies Selling CBD Products as Dietary Supplements (11/26/2019)
4.Seller of Liposomal Curcumin, Vitamin C & Melatonin Warned for Manufacturing Violations (08/20/2019)
5.DMHA and Phenibut Are Not Permitted in Dietary Supplements, Warns FDA (04/16/2019)
6.Seller of 5-HTP, Potassium & More Warned for Manufacturing Violations (12/01/2018)
7.Thirty-Two Children's Homeopathic Products Recalled (08/25/2018)
8.Seller of Coenzyme-A Warned For Making Drug Claims (01/26/2018)
9.FDA Warns Seller of Menopause, Sexual Enhancement, Prostate Supplements and More For Manufacturing Violations (06/23/2017)
10.Seller of Tea Supplements Warned for Manufacturing Violations (02/28/2017)
11.Seller of Liver, Lung Support Supplements Warned for Drug Claims (01/16/2016)
12.Seller of Weight Loss, Saw Palmetto Supplements and More Warned for Drug Claims (10/21/2014)
13.Maker of Cough and Sleep "Remedies" Warned for Drug Claims (07/11/2014)
14.Maker of Mood, Smoking Cessation Supplements and More Warned for Violations, Drug Claims (05/14/2014)
15.Maker of Energy, Weight Loss, Sleep and Vitamin D Supplements Warned for Manufacturing Violations (08/16/2013)
16.Sleep Supplement Recalled Due To Undeclared Drugs (08/08/2013)
17.Cardio, Energy and Sexual Enhancement Supplement Distributor Warned For Manufacturing Violations and Drug Claims (04/18/2013)
18.Prescription and Street Drug Alternatives Found in Male Enhancement, Mood, and Sleep Supplements (07/27/2012)
19.Tart Cherry Supplement Selller Warned by FDA Over Illegal Health Claims (06/13/2012)
20.Homeopathic Manufacturer Settles False Advertising Suit (06/01/2012)
21.FTC Stops Spammers Selling Bogus Hoodia and Human Growth Hormone (08/31/2007)
22.Marketers of Bogus Growth Hormone Sprays Settle with FTC (06/14/2007)
23.Canada Warns of Herbal Sleep Product Containing Rx Drug (12/18/2006)
24.Canada Advises Consumers Not To Use Adulterated Sleep Supplement (08/31/2006)
25.FTC Stops False Claims about HGH Oral Spray (10/18/2005)
26.Supplement Company to Pay $2 Million Penalty For Alleged Violations of FTC Order (10/12/2005)
27.FTC Stops False Advertising of Heavily Promoted Supplements for Breast Enhancment, Male Virility, and Snoring (07/21/2003)
28.FTC Requires Scientific Evidence for "Snore Formula" Claims (04/15/2003)
29.Canadian Warning on Use of Bejai Bowyantan for Infants (06/20/2002)

News Releases Found:
2020 03/25/2020Trouble Sleeping? ConsumerLab Tests Reveal the Best Melatonin Supplements
 03/04/2020CBD Most Often Used for Pain, Then Sleep, According to CL Survey. Half of Users Think It Works.
2018 07/31/2018Best L-Tryptophan and 5-HTP Supplements Identified by ConsumerLab -- ConsumerLab Tests Strength and Purity of Supplements for Sleep and Mood
 05/31/2018ConsumerLab Identifies the Best Valerian Supplements -- Strength, Quality and Cost Vary Widely Among Popular Brands
2017 09/26/ Explains How to Take Melatonin and Reveals Its Top Supplement Picks
2016 02/24/2016Vitamin D Supplements Jump to Top Spot in Popularity, Surpassing Fish Oil, as Probiotics Rise to #5 Spot Behind CoQ10 and Multivitamins in Survey
2015 05/28/ Shows How to Choose the Right Melatonin Supplement for Sleep
2013 10/23/2013Valerian “Sleep” Supplements Vary Widely in Key Compounds and Two Fail Tests for Lead Contamination
2011 11/29/ identifies many quality melatonin sleep supplements, but prices range from 4 cents to over $1 for the same dose
2010 11/24/ faults AHPA trade group for misrepresenting quality of valerian supplements
 11/10/2010Only 22% of valerian herbal sleep supplements selected for review pass tests for quality by
2008 10/02/ finds melatonin supplements range in strength but ingredient quality is high
2006 08/15/2006Over 70% of herbal sleep supplements fail tests for quality by — Results for 16 valerian products released today
 03/29/ reports on 29 popular melatonin sleep supplements
2004 07/07/ finds several herbal sleep supplements fail tests for quality — Results for 13 valerian products released today
 04/22/ shares insights from 2 years of testing supplements for athletic banned substances — Athletes and manufacturers urged to learn how to avoid problems
2002 12/30/2002Top quality melatonin products identified by — Hormone supplement used to treat sleep disturbances due to jet travel and other causes
2001 07/09/2001Many herbal sleep products lack key claimed ingredient — Results of's testing of valerian products released on web today


This search engine specifically searches for information in the Product Reviews, The Natural and Alternative Treatments Encyclopedia, Recalls and Warnings, and Press Releases on the Web site. It can be used, for example, to find all references to products from a specific manufacturer listed on the site or references to specific medical conditions or other terms.

Enter your query:
 Free Text Search (Recommended for general terms. Uncheck for brand names.)



Coronavirus Information Center
Coronavirus Information Center
Answers to Critical Questions About COVID-19.

Product Reviews

In addition to our product reviews our encyclopedia covers the following:

Herbs & Supplements


Drug Interactions

Alternative Therapies



Follow us on...
facebook twitter
Join |  Sign In
Join Us on Facebook! Join Us on Instagram! Join Us on Twitter! Join Us on YouTube! Join Us on YouTube!
Product Reviews
Brands Tested
Health Conditions
CL Answers
Clinical Updates
Recalls & Warnings
Recommended Intakes
Where to Buy Products
Testing Program
How Products Were Tested
Quality Certification Program
Join CL Today
Join Free Newsletter
Group Subscriptions
Gift Membership
About Us
The CL Seal
CL Survey
Privacy Policy
Contact Us/Help

©2020, LLC. All rights reserved. A single copy of a report may be printed for personal use by the subscriber. It is otherwise unlawful to print, download, store or distribute content from this site without permission. name and flask logo are both registered trademarks of, LLC. This site is intended for informational purposes only and not to provide medical advice.