Our story & standards

For people who look twice.

We make Vitamin C shower filters. And we believe you should understand what they do, why they work, and what you’re choosing for your everyday.

Meet our standards

A small part of your day. Worth a closer look.

Samples, questions, and the details of everyday use.

Our beginning

We started by looking closer.

We’re Jay and Leo. A shower filter changing colour made us stop and ask a simple question: what are we showering in?

We ordered samples, tried different systems, and kept asking about chlorine, chloramine, hot water and flow. That search brought us to a team in Korea working on Vitamin C filtration.

Finding the technology was a start. Then came the rest of the shower: the spray, the fit, the refills. And a window that keeps the filter in plain sight.

More of the beginning

In Korea, we worked through manufacturer lists in cafés and spent our days visiting factories. We were looking for a team whose answers matched the care they put into the product.

We took samples home. Our families and friends tried them too. Early customers sent photos and questions back. Those conversations helped shape the product and the kind of company we wanted to build.

Jay & Leo, founders of Second Shower

Our standards

We take your shower surprisingly seriously.

Shower care should work. And you should understand why. These are the choices we build that belief into.

Show our thinking.

A useful answer goes further than “trust us.” We explain the job of each material, what we measure, and what the result can tell you.

Vitamin C treats chlorine and chloramine. The sediment filter catches particles. Different jobs, with different ways to check them.

Explore the science

A result you can look into.

The number matters. So does knowing how we got it.

99.9%+chlorine reduction

0%100%

Independent third-party laboratory testing. Results depend on water conditions and use.

Result & scope

Chlorine test result and scope
Measured result	99.9%+ chlorine reduction
Evidence	Independent laboratory test
Scope	Tested conditions; not a guarantee for every home

This result does not measure sediment capture or water hardness. Second Shower does not soften water.

Make care visible.

We deliberately kept the filter in view. We call it the Truth Window: a way to notice the part of your shower you used to overlook.

Seeing what the sediment filter catches can start a good question. Clear explanations help you understand the answer.

What the window can tell you

A colour change shows material collecting in the sediment filter. It is not a chlorine reading or a filter-life gauge. Water conditions vary between homes, so keep to the care guidance for your model.

Build for every day.

The first shower matters. So does the next filter change. We pay attention to the spray, the fit, and the parts you live with.

That care continues in model-specific instructions, replaceable filters, and answers when you need a hand.

Find your care guide

A fresh filter. A clear routine.

Showerhead: 60 days
Showerhand: 30 days

Recommended replacement schedule. Replace sooner if your water conditions call for it.

One better shower. Then another.

Early customers sent photos, questions, and feedback. Those conversations still shape how we think about shower care. When a choice feels worth sharing, it reaches a partner, a parent, a friend. That is the ripple.