CL Answers

Urinary Tract Infections (UTIs): Do Supplements Help?

Certain supplements may help reduce the risk of urinary tract infection (UTI) recurrence. Find out which might help and which might not.

How much calcium do you need each day, what forms are best, and how much is too much?

Learn about the recommended daily intake of calcium from food & supplements and why taking too much can be harmful. Also, learn about the forms of calcium that are available and which are best.

Supplements to Take or Avoid When Using a GLP-1 Drug

Certain supplements may be helpful when taking a GLP-1 agonist, but others should be used with caution or avoided. It may also be important to monitor levels of certain vitamins and minerals. Get the details.

L-Tyrosine: Health Effects and Safety

Tyrosine has been evaluated for conditions including physical and mental stress, phenylketonuria (PKU), depression, and attention deficit-hyperactivity disorder (ADHD). Find out if it works and if it's safe.

Which supplements help with arthritis?

Learn more about supplements for joint health, including products such as Wobenzym and Zyflamend and ingredients such as collagen, curcumin, devil's claw, glucosamine and chondroitin, hyaluronic acid, magnesium, omega-3 fatty acids, palmitoylethanolamide (PEA), SAMe, and others.

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.

Grüns Gummies: What’s In Them, Do They Work, and Are They Safe?

Find out what's in Grüns Superfoods Greens Gummies, if they work, and if they are safe. Get ConsumerLab's take on these gummy vitamins with added fiber and powdered fruit and vegetables.

Here’s What You Should Look For In Toothpaste and Mouthwash, and Our Top Picks

Learn about ingredients you want in your toothpaste, mouthwash and other dental products and which ingredients you may want to avoid.

Which air purifiers are best for reducing microbial and smoke particles from room air?

Find out if portable air cleaners can remove the virus that causes COVID-19 infection from the air and learn which type air cleaners work best.

Do any supplements, foods or lifestyle modifications help with brain function, like memory and cognition?

Find out which supplements help improve memory, brain function and cognition, including fish oil, some B vitamins, cocoa, and curcumin. ConsumerLab's answer explains the evidence for supplements promoted to help with brain function and cognition.