Signs of hard water include dry, flaky skin, dull or lifeless hair, and mineral deposits on your shower head or faucets. You can check your local water hardness by entering your postcode in our water quality tool.

You may feel dryness or irritation after showering, or notice a chlorine smell. For exact levels, check your local water quality report using our tool or use an at-home water testing kit.

Both chlorine and hard water can affect the skin barrier.

Hard water is naturally alkaline, meaning it can raise your skin's pH above its ideal level. Over time, this can weaken the skin barrier, increase moisture loss and leave skin more sensitive to irritation. Research has also linked living in hard water areas with higher rates of dry skin and eczema (ref. 1).

Chlorine is a recognised skin, eye and respiratory irritant (ref. 2). The strongest evidence comes from high-exposure settings such as swimming pools, where frequent exposure has been associated with worsening eczema symptoms in allergy-prone individuals (ref. 3). While chlorine levels in everyday tap water are much lower, reducing unnecessary exposure can help create a better environment for your skin barrier.

Our shower filters significantly reduce free, as verified through independent SGS testing, helping make shower water gentler on skin.

Trace metals such as copper and lead can penetrate and accumulate in the skin (ref.1), and several metals are recognised skin sensitisers and irritants (ref. 2). 

Our filters use KDF (copper-zinc) media, an established redox technology that helps reduce certain dissolved heavy metals, including lead and mercury. The filter media is independently RoHS-tested and verified free from heavy metals (lead, mercury, cadmium and chromium), so it reduces what's in your water without adding any metals of its own.

Hard water and chlorine aren't proven to directly cause acne, but they can contribute to the conditions that leave skin feeling more reactive. 

Hard water increases the amount of residue left behind after washing. Combined with a higher skin pH, this can leave the skin barrier feeling dry, tight or compromised. Chlorine can add to this by drying and irritating the skin barrier (ref. 1; ref. 2). 

Our filters are designed to reduce chlorine and improve the quality of your shower water, helping create a better foundation for the skincare products that follow.

Our consultant GP, Dr. Sonia, explains it like this: 

"Hard water can increase skin pH, making it more alkaline. The skin barrier functions best at a slightly acidic pH (~5.5). A higher pH weakens the skin's defence mechanisms. Prolonged exposure to hard water can compromise the skin barrier, making it more susceptible to various skin concerns. This can contribute to flare-ups of eczema and psoriasis, as well as increased skin sensitivity." 

Your skincare routine starts with water. By reducing chlorine and other impurities, our filters help create a better environment for your skin barrier, so your routine can perform at its best.

Hard water contains minerals, mainly calcium and magnesium, and sometimes trace metals like iron or copper. These minerals prevent soap from dissolving properly, which leaves behind a residue on the skin and hair, as well as directly impacting skin and hair health.

Yes, our Hello Klean Filtration range is compatible with electric heaters and can be installed without issue. However, because different heaters have varying flow requirements, we recommend checking with your heater's supplier or manufacturer beforehand to ensure optimal performance. This way, you can be sure everything works smoothly together.

Not in the same way as a traditional water softener.

A water softener removes the calcium and magnesium that make water hard, usually for your entire home. Our filter doesn't remove those minerals, so your water's hardness level stays the same.

Instead, Hello Klean is engineered to reduce the effects of harsh water on your hair and skin.

Our multi-stage filter significantly reduces free chlorine, while CRS is used for scale control to help reduce the mineral deposits left behind on your hair and skin.

CRS (used in our Shower Heads) is a plant-derived, amino acid-based scale inhibitor that binds to calcium and magnesium, keeping them dispersed in the water rather than allowing them to crystallise and form limescale. It delivers a minimum of 82% scale inhibition across 8,000 litres, helping reduce the buildup that can leave hair feeling rough, skin feeling dry and shower surfaces coated in scale.

So while your water isn't technically softer, the result is water that feels noticeably gentler on your hair and skin.

If your goal is preventing limescale throughout your home, you'll need a traditional water softener. If you're looking to improve the quality of the water you shower in — and reduce the effects of harsh water on your hair and skin — Hello Klean is a simple, renter-friendly solution.

Purifying Shower Head fits on handheld showers. If you have an electric heater, please check with your plumber prior to purchase.

Our Shower Filter fits under the tap.

See our fitting guide here.

Our Smart Refill Plan takes the hassle out of remembering when to change your filter. You’ll get fresh capsules delivered every 3 months to ensure impurities don’t creep back in and disrupt your routine.

You can cancel and change delivery time at any time in your account.

The new shower head is a significant upgrade. It offers advanced filtration, reducing chlorine and targeting a broader range of impurities. The capsule change system has also been improved, making the refill process quick and mess-free, ensuring a seamless experience with minimal effort. Additionally, the new model is built to handle higher water pressure while reducing leakage, providing a more efficient shower experience. With enhanced pressure absorption, it delivers a stronger, more consistent water flow, which the older version lacks.