CL Answers

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.

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.

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.

Which supplements help reduce the risk of colorectal cancer?

Find out which supplements may reduce the risk of colorectal cancer, including folate, fiber, selenium, and vitamin D.

Sugar Substitutes: Pros, Cons, and Best Choices

Learn about the pros and cons of using sugar substitutes and artificial sweeteners in place of table sugar. Sweeteners discussed include stevia, monk fruit, and other high-intensity sweeteners; xylitol, erythritol, allulose and other low-calorie sweeteners; and agave syrup, black sugar, coconut sugar, honey, molasses and other sugar alternatives.

Which supplements and foods reduce or increase the risk of kidney stones?

Find out which supplements, foods and beverages may increase or decrease the risk of kidney stones, including information about potassium, calcium, choline, turmeric and curcumin, vitamin C, as well as foods and beverages such as green tea, lemon juice, orange juice, cranberry juice, chocolate and almonds.

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.

NOVOS Core for Longevity and Aging: Does It Work?

NOVOS Core claims to be "the first formulation designed to address all 12 biological hallmarks of aging." Find out if it works and if it's safe.

Are Peptides Such as BPC-157 and TB-500 Safe and Effective?

Find out about BPC-157 and TB-500, including what they're promoted for and if they're safe.