Added to your water supply to kill bacteria - it does that job well. It also strips natural oils from your skin and hair with every shower, compromising your skin barrier, weakening the hair shaft, and disrupting your scalp microbiome simultaneously.

Calcium and magnesium are present in 85% of UK households - they are the reason your shower screen furs up. They coat the hair shaft in mineral deposits that block moisture, dull the surface, and make your skin feel perpetually unclean regardless of what products you use.

Lead, copper, and mercury leach from ageing pipes and solder joints into your water supply - particularly prevalent in older UK housing stock. On hair they cause oxidative damage, dullness, and unpredictable colour fading. On skin they accelerate the very processes your skincare routine is trying to reverse.

Rust, silt, and debris travel from ageing infrastructure through your pipes and into your shower — the particles that load and darken your filter over ninety days. Physically abrasive on skin and scalp with repeated daily exposure, they block pores, irritate follicles, and accumulate in places no shampoo can address.

Forever chemicals - synthetic compounds that persist indefinitely in the environment and in the body - are present in a significant proportion of UK tap water. Activated carbon fibre filtration is one of the few consumer technologies that provides meaningful reduction.