ConsumerLab.com uses JavaScript to provide the best possible experience for our content, but your browser has it disabled. Learn how to enable it here.

Reviews & Articles

Membership & Subscription

About ConsumerLab.com

About Testing

News

Sorry, we didn't find any results for iHealth Lab Inc.

Check your spelling or browse articles by category:

Check out the latest CL Answers:

I take levothyroxine (Synthroid), a thyroid hormone to treat hypothyroidism. Are there supplements or foods I should avoid, or be taking, due to this drug?

Is taking certain supplements and hypothyroidism medications bad? Learn which supplements can interact with thyroid hormone medications like levothyroxine (Synthroid), thyroid hormone levels, and laboratory tests.

Levothyroxine (Synthroid) Supplement Interactions

Why Is There a California Prop 65 Warning on My Supplement?

Learn more about warning labels indicating that a supplement contains a chemical known to the State of California to cause cancer.

Woman Examining Supplement Bottle

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).

Carcinogens in Sunscreens - Bottle of sunscreen with a question mark

Which ingredients should toothpastes and other dental products contain, and which should be avoided?

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

Toothpaste in the shape of question mark coming out from toothpaste tube

Are supplements such as Thyroid Care Plus helpful for hypothyroidism? Can supplements worsen thyroid function? And what is nascent iodine?

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.

Woman holding various vitamins and supplements in one hand and glass of water in the other
All CL Answers

Search term may appear only in full report available to members. Join now for full access.