34K views · 21 reactions | There’s a lot of science in that little blue NSF certification mark! NSF International tests more than 30,000 products a year. Learn more at www.nsf.org. | NSF | Facebook

12 reactions | Buy products you can trust. We made looking for the NSF Certified mark easier than ever with this handy search tool at https://bit.ly/3qWSUyw. | NSF | Facebook

Do you have a question about water filters? What about about supplements? Let us help! As an independent global health and safety organization, NSF International tests and certifies products and writes standards for the food, water and consumer goods industries. 📧: info@nsf.org ☎️: 1.800.673.8010 💬: Facebook Messenger ℹ️: https://www.nsf.org/consumer-contact | NSF