The Science Behind Nordic Purity
At Nordisk Renhet, we are driven by science. Our mission is to enhance skin health and overall well-being by optimizing the quality of your shower water through advanced, research-backed filtration solutions.
Optimizing Water Quality for Skin and Health
Inside the filter
KDF 55
KDF 55 is a specialized filtration medium made from a copper-zinc alloy, designed to remove chlorine, heavy metals, and other harmful impurities commonly found in water. This process, known as redox (reduction-oxidation), helps eliminate contaminants like chlorine and lead, providing cleaner and safer water for skin and hair.
By removing these impurities, KDF 55 improves water quality, which can help prevent skin dryness, irritation, and hair damage caused by chlorine and metals. It is especially beneficial for individuals with sensitive skin or hair prone to damage from harsh water contaminants.
By incorporating KDF 55 into your shower head, you ensure you receive purified water that is gentler on your skin and hair, providing a cleaner and more refreshing shower experience.
Calcium sulfite
Calcium sulfite works by breaking down chlorine and chloramine, two common disinfectants used in municipal water supplies. These compounds can dry out your skin and cause hair damage, so removing them can significantly improve your showering experience.
This filtration process neutralizes chlorine and chloramine, leaving water that is less harsh on your skin and hair. As a result, you may notice softer skin, shinier hair, and a more comfortable shower overall.
By incorporating calcium sulfite into your filtration system, you help ensure that your water is free from harmful chemicals, providing a safer and more soothing shower.
Activated Carbon
Activated carbon is a filtering material with a large surface area, making it incredibly effective at absorbing unwanted chemicals, chlorine, and other organic pollutants. This process helps remove odors, harmful substances, and unpleasant tastes, leaving your water cleaner and healthier.
By removing chlorine, volatile organic compounds (VOCs), and other chemicals, activated carbon helps improve the overall quality of the water you use for bathing. This means a more pleasant showering experience, with less irritation to skin and hair.
By incorporating activated carbon into your filter system, you improve both water quality and the refreshing effect of your shower, making it more beneficial for your skin and hair health.
High Fiber PP Stainless Steel Filter (Casing Material)
The casing is made from a blend of high-fiber polypropylene (PP) and stainless steel, offering a robust protective layer for the filtration components. Stainless steel adds strength and resilience, ensuring the filter maintains its shape and function even with continuous use. High-fiber PP provides increased flexibility and wear resistance, making it a reliable choice for long-term durability.
This material ensures the filter remains intact while withstanding the stresses of daily use, offering a long-lasting solution for effective water filtration. The combination of these materials makes the casing resistant to corrosion, ensuring the filter remains effective over time, even in humid and wet conditions.
By incorporating a high-fiber PP-stainless steel filter casing, the system benefits from a robust structure that not only enhances filtration efficiency but also extends the product's lifespan, making it a reliable choice for long-term water filtration.
Chlorine.
Exposure to high chlorine levels in water can be harmful to skin cells (keratinocytes), especially over time:
- A 15-minute exposure to 200 mg/L of chlorine was toxic to both normal and scarred skin cells.
- Even at a lower concentration of 100 mg/L, exposure for 1 to 3 consecutive days caused significant damage.
- Scarred skin cells (hypertrophic scars) were more susceptible to chlorine than normal skin cells, showing increased sensitivity and damage.
- Overall, chlorine at 100 mg/L severely damages growing skin cells, with an even greater impact on scar tissue.
This suggests that prolonged exposure to high chlorine levels impairs skin health, especially for individuals with sensitive or damaged skin.
Calms skin. Reduces irritation.
Washing with hard water leaves more surfactant residues like SLS, which can weaken the skin barrier:
- SLS disrupts skin proteins, removes protective lipids, and raises pH, causing irritation.
- Those with atopic dermatitis (AD) and FLG mutations are particularly sensitive and experience greater skin damage.
- Hard water exacerbates these effects, increasing lipid disruption and protein breakdown.
- Water softeners help by removing calcium and magnesium, which reduces SLS accumulation and irritation.
This highlights the importance of water quality in protecting skin health. By investing in a filtered shower head, you can reduce exposure to these harmful substances and give your skin and hair the care they deserve.
Heavy metals and other impurities.
Water can contain heavy metals such as lead, mercury, and nickel, which have been linked to oxidative stress and skin inflammation.
KDF 55 and 85, or KDF-C media remove up to 98% of heavy metals.
Skin moisturizer.
Everyday environmental factors can weaken the skin barrier and affect skin health:
- Hard water, allergens, and bacterial toxins (such as Staphylococcus aureus enterotoxin B) decrease Natural Moisturizing Factor (NMF), essential for skin hydration.
- Daily stress triggers inflammatory responses, increasing skin cytokine secretion—even in healthy individuals.
- Within 48 hours, these stressors cause skin barrier impairment, shown by increased transepidermal water loss (TEWL)—a key sign of skin damage.
- Low humidity accelerates filaggrin breakdown, making it harder for the skin to retain moisture.
This highlights the importance of investing in a filtered shower head to protect your skin barrier and maintain optimal hydration. By removing chlorine, heavy metals, and other contaminants from your water, you can give your skin the care it deserves and prevent long-term damage.
Prevalence of Eczema.
Exposure to hard water has been linked to a higher risk of eczema, especially in children:
- Every 50 mg/L increase in water hardness slightly increases the risk of eczema.
- Hard water above 200 mg/L (WHO guideline value) is significantly associated with eczema.
- Studies show a clear trend—the harder the water, the greater the risk.
- Hard water forms when minerals dissolve from limestone and sedimentary bedrock.
- It reduces the effectiveness of soap, leading to residue buildup on the skin.
- Early life exposure can trigger skin inflammation, although the risk decreases with age.
This highlights the importance of soft water for maintaining the skin barrier and preventing eczema. By investing in a filtered shower head, you can reduce exposure to hard water and give your skin the protection it needs.
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