The TestPFAST Blog

Your thyroid gland plays a vital role in your health—even if you don’t think about it often. It controls hormones that regulate your energy levels, metabolism, and mood. But PFAS, also known as “forever chemicals,” may be interfering with your thyroid without you even...

When you turn on your tap or swim in a lake, you expect the water to be clean and safe. But increasingly, water sources across the country are contaminated with chemicals that are anything but safe—especially for your immune system. One class of these chemicals, PFAS...

Taking a sip of water should be refreshing, not confusing. If you've ever wondered, "Why does my water taste weird?" you're not alone.  From subtle metallic notes to outright funky flavors, strange-tasting water can leave you concerned and looking for answers.  Let’s...

When it comes to hair and scalp health, we often focus on finding the perfect shampoo or conditioner, but there’s one sneaky culprit that often flies under the radar: hard water.  If you’ve ever struggled with a flaky, itchy scalp or hair that feels dry and lifeless,...

PFAS—short for per- and polyfluoroalkyl substances—are everywhere. In fact, they’ve been detected in the blood of nearly every American. These man-made chemicals are used to make products water- and stain-resistant. Unfortunately, their benefits come at a serious...

Bottled water—it's everywhere, from your gym bag to your car’s cup holder.  It’s convenient, it’s refreshing, and it’s marketed as the purest thing you can drink. But have you ever wondered what keeps it safe to sip?  Enter the world of bottled water regulations!...

When faced with questionable water quality, boiling water is often the go-to solution. But does boiling water purify it completely?  This question is especially important for those in areas without access to clean water or during emergencies.  While boiling is a...

You may not see them, smell them, or taste them—but they’re likely in your water. “Forever chemicals,” officially known as PFAS (per- and polyfluoroalkyl substances), are invisible pollutants that have infiltrated water systems across the U.S. and beyond. Once in the...

When it comes to clean, great-tasting water, Brita is one of the most trusted names in the game. But what does the Brita filter out exactly? And are there things it doesn’t tackle?  If you’ve been curious about what’s happening inside that sleek filter, let’s break it...

As parents, every decision you make feels monumental, from the type of diapers you use to what your baby eats and drinks.  One common question parents face is: Can babies drink tap water?  While it seems like a simple yes-or-no issue, the answer depends on factors...