The water in Belgrade is hard. It carries a lot of minerals and sediment, and you can see it everywhere: on the shower glass, in the kettle, around the taps. What is harder to see is what that same water does to hair.

We noticed it on ourselves. Hair that tangles, loses its shine and is difficult to comb, no matter which mask or treatment you use. So we started trying shower filters, one after another.

And a filter helped, but not enough. It caught the sediment and the impurities, and that was visible straight away. But it did nothing about chlorine, and chlorine is what dries out both skin and hair.

At the same time there was something else entirely that we had always loved: the smell after a shower. That feeling of freshness on the skin, and a bathroom that still smells good long after you have left. It has nothing to do with filtration, but it has everything to do with how you feel.

Then a third thing. After a few months of using vitamin C serum on the face, the difference was genuinely visible. Visible enough to raise the obvious question: why does that stay on the face only?

That is when it clicked. All three would be so much simpler if they just arrived with the water, the moment you turn on the shower. No extra step, no extra bottle on the shelf, nothing to remember.

That is Hana. A filter that reduces chlorine and catches sediment, carries vitamin C, and leaves a scent you choose. One thing that screws on in a minute and does all three.