Why hard water could be affecting your hair

If your hair feels dry, dull or harder to manage than it should — and your products don't seem to be helping — your shower water could be part of the problem.

What is hard water?

Hard water contains higher levels of minerals such as calcium and magnesium. It's very common across the UK, particularly in the South East and East of England, where water passes through chalk and limestone before it reaches your tap.

What hard water does to hair

Those minerals don't just rinse away. Over time they can build up on the hair and scalp, which can leave hair feeling heavy, rough or dry, and make it harder to style. Mineral build-up can also affect how well your shampoo and conditioner work — so even premium products can underperform in hard water areas.

For colour-treated hair, the effects can be more noticeable: build-up may contribute to dullness and colour that looks faded sooner than expected.

Signs your water may be affecting your hair

• Hair feels dry or frizzy despite regular conditioning
• Colour seems to fade or turn brassy quickly
• Hair feels heavy or coated, even after washing
• Your usual products don't lather or perform as well as they used to

What you can do about it

You can't change the water your area supplies — but you can change what reaches your hair. A shower filter is designed to help reduce hard water minerals, chlorine and impurities before they touch your hair and skin. The Purified Beauty Shower Filter uses a 24-stage filtration system and fits most standard UK shower systems, with no plumber required.

Curious whether you're in a hard water area? Try our water hardness checker.