🛡 10-Year Guarantee
💳 0% Finance Available
🏠 Founder-led. Nationally focused.
🛡 10-Year Guarantee
💳 0% Finance Available
🏠 Founder-led. Nationally focused.
Hard water isn’t the sole cause of eczema — but research suggests it can contribute to skin-barrier disruption and irritation. For families managing eczema in a hard-water area, softer water may help reduce one potential source of irritation during bathing and washing.
Research suggests several ways hard water may affect eczema-prone skin.
Calcium and magnesium in hard water can interact with surfactants in soaps and cleansers, increasing residue left on the skin. Research has linked hard water exposure with greater surfactant deposition and skin-barrier impairment, particularly in eczema-prone skin.
Hard water can increase the amount of surfactant residue left on the skin after washing. This may increase irritation and water loss from the skin barrier, particularly where skin is already prone to eczema.
When hard water interacts with cleansing products, more surfactant can remain on the skin. This can increase irritation and transepidermal water loss — effects that may be more pronounced in eczema-prone skin.
A water softener is not a treatment for eczema and does not replace medical advice. Speak to your GP, dermatologist or paediatrician about your individual symptoms and treatment.
Research suggests that hard water can increase surfactant residue and may contribute to skin-barrier irritation, particularly in people with eczema-prone skin. However, water softeners have not been shown to treat or cure eczema, and clinical trials have not demonstrated a significant improvement in eczema severity.
For that reason, we present softened water as one potential way to reduce an environmental source of irritation during bathing and washing — not as a treatment for eczema.
Hard water can increase the amount of cleansing-product residue left on the skin after washing. Experimental research found greater surfactant deposition, barrier impairment and irritation with hard water — particularly in people with atopic dermatitis.
Observational research has found an association between harder domestic water and eczema, particularly in children. This does not prove that hard water causes eczema, but it supports further investigation of water hardness as a potential environmental factor.
Ion-exchange softeners remove calcium and magnesium from the water. Experimental research suggests that softening can reduce some of the effects of hard water on surfactant deposition and skin-barrier function.
Hard water isn’t the only factor involved in eczema, but it can affect how cleansing products interact with the skin. A water softener removes the minerals that make water hard, helping reduce limescale and surfactant residue while giving you softer water throughout the home. For eczema-prone skin, this may help remove one potential source of irritation — alongside your usual skincare and medical care.
What does the clinical evidence show? Randomised trials have not demonstrated that domestic water softeners treat eczema or significantly reduce objective eczema severity on their own. A softener should therefore be viewed as a potential environmental support, not a replacement for established eczema treatment.
KEY RESEARCH:
Danby et al., Journal of Investigative Dermatology (2018) · Thomas et al., PLoS Medicine (2011) · Jabbar-Lopez et al., Clinical & Experimental Allergy (2021)
If hard water contributes to residue and irritation during washing, softening the water changes that environment at the source. It doesn’t replace your skincare routine — it simply gives you softer water to wash with every day.
Softened water contains far less calcium and magnesium, reducing the minerals that can leave deposits on your skin, hair and bathroom surfaces.
Every shower and bath uses softened water, helping soap and shampoo rinse more easily and leaving less mineral residue behind.
A water softener isn't an eczema treatment. Keep using your usual emollients, cleansers and prescribed treatments exactly as advised by your GP, dermatologist or pharmacist.
THE POINT IS SIMPLE.
You don’t need to change how you manage your skin. Softening simply removes the hardness minerals from the water you wash with — helping reduce one potential environmental source of irritation.
These are paraphrased from customer reviews and post-install conversations. They are not medical claims.
Soft water helps soap and shampoo lather more easily, so you may find you need less product and less rinsing. Less mineral residue also means a cleaner-feeling rinse.
Softened water dramatically reduces the calcium and magnesium that form limescale. That means less buildup on baths, shower screens, taps and tiles — and less time spent cleaning it away.
Hard water minerals can build up on fabric, leaving towels feeling stiff and rough. Softened water helps reduce that mineral buildup, leaving towels feeling softer and more comfortable.
For drinking and cooking, we leave your cold kitchen tap connected to the original mains supply. Your drinking water stays untreated while the rest of your home benefits from softened water.