CL Answers

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.

All About Thyroid Supplements & Desiccated Thyroid Extract (Armour Thyroid)

Learn about supplement ingredients such as iodine, selenium, zinc, acetyl-l-carnitine, ashwagandha and guggul used for thyroid conditions and find out if they are beneficial. Also learn why ingredients such as alpha-lipoic acid, soy, resveratrol, quercetin may impair thyroid function.

Can fisetin, also called Cognisetin and Novusetin, really improve memory or slow aging?

Can fisetin (Cognisetin and Novusetin) improve memory or slow aging? Find out what clinical research shows and learn about safety and pricing of fisetin.

Is it true that there are bits of plastic in drinking water, specialty salts, or other foods and beverages? How concerned should I be?

Microplastics are tiny pieces of plastic that can end up foods and beverages. Learn about microplastics found in drinking water and specialty salts. ConsumerLab.com's answer explains.

Does taking creatine affect blood or urine test results?

Find out if creatine can affect creatinine levels and kidney function and whether creatine affects creatine kinase activity, a measure of muscle injury.

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.

What is the best sunscreen based on safety and efficacy?

We’ve boiled down the latest research about mineral and chemical sunscreens, including product tests, to help you choose the best sunscreen (which will depend on whether you expect to be in or out of the water). We also list popular sunscreens that have, or have not, been found to contain cancer-causing compounds (benzene and benzophenone).

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.

Powders vs. Pills: Which Type of Supplement Is Better Absorbed?

Learn more about taking supplements & multivitamins in powder or tablet form, including tips on how to get the most from your supplement.

Do any supplements or foods help prevent sunburn or skin damage from sun exposure? Can any increase your risk of sun-related skin damage?

Find out which supplements may help protect from sunburn and sun-related skin damage, including beta-carotene, vitamins A and C, and cocoa.