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PFAS (Per- and Polyfluoroalkyl Substances): How can I avoid PFAS in dental floss, food, water, and other products?

Some brands of dental floss, including Oral-B Glide, may contain potentially toxic chemicals known as PFAS (polyfluoroalkyl substances). Get the details, and learn which floss and pick products are our Top Picks.

Toxic PFAS Chemicals in Dental Floss -- Woman Looking at Dental Floss

Are fruit and vegetable “washes” more effective than water for cleaning produce and removing pesticides? Are they safe?

Fruit and veggie washes was such as Fit Organic Spray are often promoted for cleaning, reducing bacteria that can cause food poisoning, and removing pesticides from produce. Vinegar and baking soda are sometimes also recommended. But are they any more effective than rinsing with water, and are they safe? Find out.

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COVID-19 Vaccines for 2023-2024: What You Should Know

Learn how the updated COVID-19 vaccines for 2023-2024 (Moderna, Novavax, and Pfizer-BioNTech) differ from each other, who should get them, what the recommended dosing schedules are, and possible side effects.

Older man in gray t-shirt getting vaccinated for COVID-19

Where to Safely Buy Real Vitamins and Supplements Online, Not Fakes or Counterfeits

ConsumerLab explains how to avoid counterfeit vitamins and supplements when shopping online on Amazon,, and other sites. Learn to identify authorized sites and sellers and avoid fake supplements. Use the brand-by-brand guide to protect yourself from risk.

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Can I trust How are its tests paid for?

Learn more about's clinical testing policy and procedures, including information on our independent testing and product reviews. Our answer explains.

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