Showing Results for Glaucoma
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CL Answer
Is it true that taking glucosamine might make my glaucoma worse?
Learn if taking glucosamine may make glaucoma worse, including overall impact on eye health.

CL Answer
What is Brain Bright and can it really improve memory or cognition?
Learn more about BrainBright, including clinical studies on memory and cognition, safety, and cost.
Product Review
CBD & Hemp Extract Supplements, Lotions, and Balms Review
Find the Best CBD at the Lowest Price! Learn How Much CBD (and THC) Is Really in Products and Which Are Our Top Picks.

CL Answer
Does Longevinex resveratrol really help for age-related macular degeneration?
Longevinex resveratrol information including how it helps age-related macular degeneration & clinical evidence.
CL Answer
What are the side effects of glucosamine and chondroitin?
Learn the side effects of glucosamine and chondroitin supplements for joint health and joint pain, including stomach upset, headache, and many others. ConsumerLab.com's answer explains.

Product Review
Joint Health Supplements Review (Glucosamine, Chondroitin, MSM, Boswellia, Collagen and Turmeric)
One-Third of Joint Health Supplements Failed to Pass Our Tests. See Which Passed or Failed, and our Top Picks.

Product Review
Ginkgo (Ginkgo Biloba) Supplements Review
Choose the Best Ginkgo Biloba Supplement. Finding Real Ginkgo Isn't Easy — 60% Fail ConsumerLab's Tests of Quality.

CL Answer
Do hair loss supplements, such as Viviscal, Hair La Vie, and Nutrafol, or topical essential oils work?
Vitamins and supplements that may help with hair loss and thinning, including saw palmetto, beta-sitosterol, protein, iron, and vitamin D.

Clinical Update
6/02/2013
Glucosamine May Increase Eye Pressure
New research suggests that people with glaucoma or intraocular hypertension could have worsening eye pressure if they take a glucosamine supplement. Get the details (along with our tests of glucosamine and other joint health supplements) in the updated Glucosamine/Joint Health Supplements Review >>
Clinical Update
5/28/2019
Glucosamine & Eye Pressure
Glucosamine may increase eye pressure in people with glaucoma or intraocular hypertension. But does it have this effect in people who don't have these conditions? See what a new study found in the Concerns and Cautions section of the Joint Health Supplements Review. Also see our Top Picks for glucosamine and chondroitin.
CL Answer
Which supplements help with Raynaud's phenomenon?
Raynaud's phenomenon may be helped by some supplements. Learn more about fish oil, Gingko biloba, and ginseng.

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

CL Answer
Do any supplements help with COVID-19? Do supplements like vitamin D, zinc, vitamin C, or herbals work?
Find out if natural remedies & supplements for coronavirus such as zinc, vitamin C, garlic, or elderberry help to prevent or treat COVID-19.

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.

Product Review
Alpha Lipoic Acid Supplements Review
Choose the Best Alpha-Lipoic Acid Supplement. Some Alpha-Lipoic Acid Supplements Cost 13 Times As Much As Others -- But Is It Worth Paying More?

Recalls & Warnings
7/21/2022
Young Living Warned for Promoting Essential Oils to Treat Seasonal Allergies, Kidney Stones & More
On June 10, 2022, the FDA issued a warning letter to Young Living Essential Oils Corporate after an inspection of the company’s website and social media found statements about the company’s essential oil and CBD products to be drug claims.
Recalls & Warnings
10/08/2019
Seller of Tea, Colloidal Silver, Homeopathic Products Warned for Manufacturing Violations
On September 12, 2019, the FDA issued a warning letter to Herbal Healer Academy, Inc.
Recalls & Warnings
12/17/2020
FTC Crackdown on Six Deceptive CBD Products
On December 17, 2020, the FTC announced that it is taking action against six companies for selling CBD products with unsupported and deceptive health claims that they can treat a variety of conditions, including cancer, heart disease, hypertension, Alzheimer's disease, and others.
Recalls & Warnings
6/06/2017
Seller of Vision, Cholesterol, Prostate Supplements and More Warned for Drug Claims
On May 25, 2017, the FDA issued a warning letter to Herbal Doctor Remedies following a facility inspection and review of the company's websites, www.herb-doc.com, www.ChinaSecretMed.com and www.theraherb.
Recalls & Warnings
11/01/2017
Hemp Oil and Cannabidiol (CBD) Marketers Warned by FDA Over Claims
On November 1, 2017, the FDA announced it issued warning letters to four companies promoting products containing cannabidiol (CBD), a compound derived from cannabis (also known as marijuana), for the treatment of cancer, as well as other diseases, such as Alzheimer's disease. In the U.
Recalls & Warnings
5/21/2014
Seller of Gingko and Milk Thistle Warned for Manufacturing Violations and Drug Claims
On April 4, 2014, the FDA issued a warning letter to Xtra Life Natural Systems, Inc.
Recalls & Warnings
3/06/2009
"The Truth About Nutrition" Marketers Agree to Pay $3 Million to Settle Charges of Deceptive Advertising of Dietary Supplements and Devices
On March 6, 2008, the Federal Trade Commission (FTC) announced that marketers of dietary supplements and health-related devices have agreed to pay $3 million in consumer redress to settle FTC charges that they deceptively claimed their products treated or prevented a wide variety of serious ...
Recalls & Warnings
2/13/2016
Cannabis Compound Not Permitted in Supplements, FDA Warns
On February 4, 2016, the FDA issued warning letters to eight companies selling products containing cannabidiol (CBD), a compound derived from cannabis (also known as marijuana). In the U.S., cannabidiol is not permitted to be sold as an ingredient in dietary supplements.