eskiin Shower Filter Review: Does It Actually Filter?

eskiin at a Glance

What eskiin Claims

eskiin markets its showerhead as a filter for chlorine, heavy metals and other impurities, aimed at better hair and skin. Its product pages describe a blend of KDF-55, calcium sulfite and activated carbon, and say the filter far exceeds NSF/ANSI 177 requirements. That last claim is the brand's own wording: eskiin does not appear on NSF's official NSF/ANSI 177 listing, which today includes products such as the Weddell Duo and the Jolie. "Exceeds NSF standards" and "NSF certified" are not the same thing.

What Independent Testing Found

Water Filter Guru, which runs its own tests on shower filters, measured chlorine before and after the eskiin. The result: 1.68 PPM before and 1.79 PPM after. A slightly higher reading after filtration is within normal test variation, so the fair conclusion is that the filter did not measurably reduce chlorine in that test. The same review found no reduction in the disinfection byproducts it measured and, as expected for any shower filter, no change in hardness.

For comparison, in the same site's testing:

• The Weddell Duo took chlorine from 1.68 PPM to 0.
• The Jolie and Canopy both eliminated the chlorine detected.
• A sister product the site tested, the Filterbaby Pro, cut chlorine from 1.68 to 0.23 PPM.

One test on one water supply is not the final word, and filters can vary between units. But a filter whose main job is chlorine reduction should show some reduction in a straightforward test, and this one did not.

What eskiin Does Well

• Water pressure: 1.74 GPM in testing is strong for a filtered showerhead.
• Design: it looks like a modern showerhead, not a plumbing add-on.
• Easy install: tool-free on a standard US shower arm.

Concerns

• No measured chlorine reduction in independent testing.
• No NSF/ANSI 177 certification, despite "exceeds NSF" marketing.
• 90-day filter subscription adds ongoing cost for a filter that did not filter in testing.
• Mixed customer feedback: some customers praise their results, but review aggregators also show complaints about the filter subscription and product reliability.
• No warranty was noted in Water Filter Guru's review.

Why Do Some Customers Love It?

Many eskiin reviews describe softer hair or calmer skin. These are real experiences, but they are not measurements. Hair and skin change for many reasons: a new routine, seasons, products, the placebo effect, or the simple act of paying closer attention. If what you want is less chlorine, the only way to know a filter works is to measure chlorine before and after. You can do this at home with chlorine test strips.

Better Alternatives

If you want an eskiin-style showerhead, the Jolie is the closest match with an actual NSF certification. If you are happy to keep your current showerhead, the Weddell Duo is our top pick. See our best shower filters guide.

If Your Real Problem Is Hard Water

No shower filter, including eskiin, removes calcium and magnesium. If your hair feels coated or straw-like, the cause is likely hard water minerals, which a chelating shampoo removes and a water softener prevents. See do shower filters work?

How to Test Any Shower Filter at Home

You do not need a lab to check whether a shower filter reduces chlorine. Inexpensive chlorine test strips (the kind sold for pools and drinking water) are enough for a before-and-after comparison:

1. Run the bath tap for 30 seconds, fill a clean glass and dip a strip. Note the total and free chlorine readings.
2. Run the shower through the filter for 30 seconds at the same temperature, fill a second glass and dip a new strip.
3. Compare. A working chlorine filter should show a clearly lower reading through the shower.
4. Repeat monthly. When the two readings match, the cartridge is used up.

If your city uses chloramine, the "total chlorine" pad matters more than "free chlorine," and most shower filters will show a smaller drop. Your city's annual water quality report says which disinfectant it uses.

Already Own an eskiin?

You do not have to throw it away. First, test it with the strip method above. If you see a real drop in chlorine with your water, it is doing its job for you. If you see no difference, consider stopping the filter subscription and either returning it within the brand's return window or using it simply as a showerhead. If you want certified chlorine reduction while keeping the eskiin head, an inline filter such as the Weddell Duo can sit between your shower arm and the eskiin.

Frequently Asked Questions

Last updated: October 2026. Sources: Water Filter Guru eskiin review; NSF/ANSI 177 listing.