Product Reviews and Information 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 are the health benefits of palmitoylethanolamide (PEA), and is it safe?
Palmitoylethanolamide (PEA) is commonly promoted for its anti-inflammatory and pain-relieving effects. Find out if it works.
CL Answer
What is Pycnogenol, does it work, and is it the same as other pine bark extracts?
Learn more about Pycnogenol, including evidence from clinical studies on blood clots, osteoarthritis, cognition, vision, tinnitus, and the skin and safety.
Product Review
CBD Oils, Softgels, Gummies, Creams & Salves Review
See How Much CBD and THC We Found in Products.
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.
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.
Clinical Update
10/10/2023
PEA for Glaucoma?
Does PEA (palmitoylethanolamide) reduce intraocular pressure and slow loss of vision due to glaucoma? Find out in our article about PEA.
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.
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.
Clinical Update
1/19/2024
Pycnogenol for Hearts and Eyes?
We answered the following questions in our article about Pycnogenol and pine bark extracts:
- Does Pycnogenol help control coronary artery calcification?
- Is Pycnogenol beneficial for glaucoma?
Clinical Update
9/19/2024
Propolis for Vision?
Propolis is found in some eye formulas, but is there good evidence that is helps with conditions such as glaucoma, cataracts, or retinal damage? Find out in our Vision Supplements Review, which includes our Top Picks among lutein and AREDS formula supplements.
Also find out if propolis has shown benefit for fatty liver disease or arthritis.
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
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.
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.
CL Answer
Which supplements are helpful for age-related macular degeneration (AMD)?
Find out which vitamins & supplements are helpful for macular degeneration (AMD), such as lutein, zeaxanthin, and others used in the AREDS studies.
Recalls & Warnings
February 28, 2024
Microbial Contamination Found in LightEyez MSM Eye Drops
On February 15, 2024, the FDA issued a Warning Letter to LightEyez Limited after testing by the agency found the company’s LightEyez.com MSM Eye Drops V2.0 — Eye Repair (MSM Eye Repair Drops) to have microbial contamination in samples of the drops.
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.
Recalls & Warnings
July 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.
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.
Recalls & Warnings
December 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
October 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
June 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
May 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
March 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
February 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.
Recalls & Warnings
November 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.
