Shower Water Insights

Does Hard Water Cause Dry Skin and Dry Scalp? The Science Behind It
TL;DR Yes — hard water is a proven contributor to dry skin and dry scalp. Multiple peer-reviewed studies confirm that high calcium and magnesium concentrations in shower water damage the skin barrier, disrupt scalp pH, and worsen conditions like eczema, psoriasis, and general dryness. The mechanism is direct chemistry: calcium and magnesium ions bind to skin oils, forming insoluble deposits that block the skin's ability to retain moisture. Here's what the science says and what you can do. --- How Hard Water Affects the Skin Barrier Your skin's outermost layer... Read more...
Hard Water in Sweden: City-by-City Hardness Levels and What They Mean for Your Skin and Hair
TL;DR Sweden has varying water hardness across the country — from moderately soft in parts of Stockholm to hard in parts of Skåne and western Sweden. The health effects of hard water (dry skin, dry scalp, dull hair) are real and well-documented. This guide covers what the science says, how hard your city's water actually is, and what you can do about it. --- What Is Water Hardness? Water hardness is the concentration of dissolved calcium (Ca²⁺) and magnesium (Mg²⁺) ions in water — typically expressed as milligrams of calcium... Read more...
Chlorine in Shower Water: The Hidden Health Risk You're Exposed to Daily
TL;DR Swedish tap water contains trace chlorine or chloramine — added for microbial safety in the distribution system. In the shower, this chlorine evaporates into steam and forms THMs (trihalomethanes), which are inhalation hazards. The solution: a calcium sulfite + activated carbon shower filter. Here's everything the science tells us. --- Why Is There Chlorine in Swedish Water? Sweden's drinking water is among the cleanest in the world. Municipal water goes through extensive treatment before it reaches your tap. But bacteria can still enter the system through pipe joints, reservoirs,... Read more...
What’s Really in Your Shower Water? The Hidden Truth Behind Shower Filters
What’s Really in Your Shower Water? The Hidden Truth Behind Shower Filters
Your shower water might contain chlorine, chloramines, and heavy metals. While shower filters can help, they don’t solve hard water issues. Learn what to do instead. Read more...
Do Shower Filters Help with Dry Skin and Hair?
Do Shower Filters Help with Dry Skin and Hair?
Shower filters can reduce chlorine, which may improve dry skin and weak hair. However, most don’t tackle hard water minerals. A high-quality shower filter or water softening system offers longer-lasting... Read more...
Granular Activated Carbon Close Up
Granular Activated Carbon (GAC) Filters | Nordisk Renhet
Granular activated carbon (GAC) filters effectively remove organic chemicals, chlorine, and unpleasant odors from water, promoting healthier skin, hair, and overall wellness. They are essential for anyone looking to upgrade... Read more...
Calcium Sulfite Raw Calcium Rocks
Calcium Sulfite Shower Filter – Clean Water for Healthier Skin and Hair
Calcium sulfite is a powerful material used in high-quality shower filters to effectively remove chlorine and chloramines from your water. By reducing harmful chemicals, a calcium sulfite shower filter helps... Read more...
Activated Carbon in Water
Activated Carbon Fiber – Next-Level Filtration for Healthier Water
Activated carbon fiber (ACF) is an advanced material offering exceptional adsorption, purification, and filtration performance. With a huge surface area and fast adsorption kinetics, ACF is revolutionizing applications from water... Read more...
Limescale buildup closeup on shower head
How Hard Water Affects Your Skin And Hair
Hard water can cause dryness, irritation, and damage to your hair and skin by leaving behind minerals like calcium and magnesium. Discover the signs, science, and effective solutions to protect... Read more...
Shower water droplets slow motion close up
Why You Should Consider a Filtered Showerhead
Filtered showerheads are an easy and effective way to reduce harmful contaminants like chlorine and heavy metals from your shower water, leading to healthier skin and hair. Experts confirm they... Read more...
Nordisk Duschvattenfilter
Purity Meets Performance with KDF Filtration in Shower Water
KDF filtration technology offers powerful protection against chlorine, heavy metals, and contaminants in your shower water, leading to healthier skin, hair, and a revitalized shower experience. Read more...
Tap water on heavy metal in hand
How to Remove Heavy Metals from Shower Water Part 1
Discover the impact of heavy metals in your shower water and how you can protect your health by filtering them out with Nordisk Renhet’s filtration systems. Read more...
Bathroom Tap Bathwater
How to Test for Chlorine in Shower Water
Want to know if chlorine is affecting your shower water? Learn how to test for chlorine in your shower water and discover filtration solutions from Nordisk Renhet to protect your... Read more...
Rusty Metal Pipes Heavy Metals
How to Remove Heavy Metals from Shower Water Part 2
Learn how to filter heavy metals like lead, copper, and manganese from your shower water and protect your skin and hair with the right filtration solutions. Explore Nordisk Renhet’s options... Read more...
Skin and water droplets close up hydrated skin
How to Protect Your Skin and Hair from Chlorine in Shower Water
Chlorine in your shower water may be causing hair loss and dry skin. Learn how to protect your skin and hair by filtering chlorine with Nordisk Renhet's shower filter solutions. Read more...
Water heavy metals contaminants
Heavy Metals in Tap Water: Protect Your Health from Lead, Copper, and More
Lead, copper, and other heavy metals in your drinking water can pose serious health risks. Learn how to detect and remove these harmful contaminants with Nordisk Renhet’s filtration solutions. Read more...
Shower misty foggy purity
Removing Chlorine from Shower Water: Now’s the Time to Do It
Remove chlorine from your shower water to protect your skin and hair. Learn how filtration can help you enjoy healthier, more hydrated skin and hair with Nordisk Renhet's solutions. Read more...
Shower corner hair products and showerhead closeup
How Chlorine in Shower Water Affects Hair and Skin
Chlorine in shower water can cause dry skin, hair damage, and even hair loss. Learn how to protect your skin and hair from the harmful effects of chlorine. Read more...
Rusty shower head
Does Heavy Metal Contamination Affect Shower Water Safety?
Heavy metals in shower water can pose a significant health risk due to their toxicity, bioaccumulation in the body, and persistence in the environment. Understanding these contaminants can help individuals... Read more...
Bacteria in water microscopic view
Shower Water Problems You Didn’t Know About (Shock Facts)
Discover the hidden issues with your shower water that could be affecting your health and comfort. From hidden contaminants to microplastics, learn how to improve your shower experience with expert... Read more...