Skin That Feels Easily Triggered
Chlorine and chloramine strip the oils that keep skin calm. The result is skin that feels tight, itchy, or reactive after every shower.
99.9% Chlorine RemovalNSF/ANSI 42 certified filter*.
Third-party lab tested.
Third-party lab tested.
It might be your water
You've blamed your skin.
It might be your water.
Hair That Feels Dry & Sheds
Disinfectants and sediment leave hair dry, coated, and hard to detangle. Wash days feel rougher, and breakage shows.
Scalp That Feels Tight & Flaky
Your scalp is skin, too. The same chlorine that dries your face leaves your scalp tight and flaky.
The Buildup Your Filter Reveals
Rust, scale, and pipe sediment travel through aging plumbing. Your filter shows you exactly what your clear water was carrying.
The proof
Real filters from real showers.
See what your water left behind.
Before
After 21 daysI always thought our water was pretty good. Three weeks later the filter looked like that, so I guess not.
Using the Second Showerhead
Before
After 14 daysWe put it on before bringing the baby home. Two weeks later the inside was brown, which was honestly kind of gross.
Using the Second Showerhand
Before
After 30 daysI didn't expect much, but my face wasn't as tight after showers. Even my derm noticed it looked less irritated.
Using the Second Showerhead
Before
After 30 daysWasn't totally sold at first. Then I opened it up after a couple weeks and yeah, it was not clean.
Using the Second Showerhand
Before
After 30 daysAfter a month in Miami the cartridge looked nasty. It made me rethink what I was showering in every morning.
Using the Second Showerhead
Before
After 21 daysMy arms usually get itchy after hot showers. It's not gone, but the flare-ups have been way calmer lately.
Using the Second Showerhand
Before
After 40 daysChicago water always felt harsh, but seeing the filter after 40 days made it feel very real. My skin feels less dry too.
Using the Second Showerhead
Before
After 26 daysBefore, [the chlorine] was literally the levels of the swimming pool.
Using the Second Showerhand
The fix
Clean water. Less stripping.
Better showers.
Second Shower filters chlorine, chloramine, and sediment before they touch your skin, scalp, and hair—so every shower feels cleaner, softer, and less harsh.
- NSF/ANSI 42 certified filter*
- 99.9% chlorine removal, independently lab tested
- Works in hot water from first shower to last.
- In-house engineered in South Korea.
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Before skincare.
Before shampoo.
Filter the water.
Your skin and hair meet your shower water first. The Second Shower Head filters chlorine, chloramine, and sediment at the source for a cleaner, softer, less stripping shower.
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The Science
Most filters fade in weeks.
Ours doesn't.
Carbon and KDF filters trap chlorine until they fill up, then they stop. Vitamin C neutralizes it through a chemical reaction that doesn't degrade through the filter's life.
NSF/ANSI 42Chlorine removal
99.9%
* Micron sediment filter certified to NSF/ANSI 42 standards.
NSF Certified
Sediment FIlter*
Traps rust, sediment
& particles down to
5 µm - finer than a
white blood cell.
Vitamin C Core
Neutralizes 99.9% of
chlorine & chloramine
on contact - from your
first shower to your last.
Day 1 to Month 3
What changes, and when.
What people notice after switching to filtered water.
See clinical data →
Day 1
Softer water, immediately
99.9% of chlorine neutralized from your very first shower. Most people notice the water feels different right away.
Week 2
Less dryness, less tightness
Without chlorine stripping natural oils daily, your skin starts retaining moisture again. 95% of users reported less dryness.
Month 1
Hair and scalp improvement
Hair retains more natural oils. Less breakage, less frizz. Color-treated hair stays vibrant longer.
Month 3
Calmer skin, working harder
Your skin barrier, worn down by years of chlorine, finally gets a break. Your products work better on calmer skin.
Your water
See what's in your water
Tap any pin to see what came out of a real customer's shower. Enter your zip to find out what's typically in yours.
Real customer filters, tap a pin
51 real customers · 21 states · growing weekly
Real reactions, from real showers.
"I didn't expect much, but my face wasn't as tight after showers. Even my derm noticed it looked less irritated."
Michelle T.
"My hair still isn't perfect, but it stopped feeling like straw after every shower. That alone made it worth it."
Priya R., Scottsdale, AZ
Verified
We don't self-report. We get tested.
NSF/ANSI 42* certification costs $15,000-$30,000 and takes 6-12 months. Most shower filter brands skip it. We didn't.
NSF/ANSI 42 certified filter*
Independently tested to NSF/ANSI 42 standards. The filter, not a sticker.
99.9% chlorine removal
Independent third-party lab tested. Not self-reported.
Food-grade Vitamin C
The same ascorbic acid used in supplements and water dechlorination.
Engineered in Seoul
10+ years of water purification R&D. Manufactured in-house.
We're serious about facts. Ask away.
How is this different from other shower filters?
Three things: (1) Vitamin C chemistry instead of carbon/KDF, it doesn't degrade during use. (2) NSF/ANSI 42* certified, independently verified, not self-reported. (3) Built-in truth window, you can see what the filter captured. No other brand offers all three. See the full comparison.
How long does the filter last?
30-60 days depending on your water quality. Two signs it's time: the Vitamin C powder in the lower chamber is depleted, or you notice reduced water pressure. Replacement filters cost $0.17 per shower.
Will it reduce my water pressure?
No. The Vitamin C reaction happens on contact without creating flow resistance. Our micro-jet array (128-176 jets) actually optimizes the pressure feel. KDF and carbon filters reduce pressure by 20-40% because they're dense media that block flow.
Can a shower filter help with eczema?
Chlorine is a known eczema trigger, the AAD acknowledges this. Removing it eliminates one of the most common environmental irritants. Many customers with eczema report improvement, but eczema has multiple causes and a filter addresses only the water component. Read what the research says.
How do I install it?
Unscrew your existing showerhead, attach the filter, screw the showerhead back on. No tools, about 60 seconds. Everything you need comes in the box. Fits 99% of US showers (standard 1/2" NPT). See the installation guide.
Your first filter tells you everything.
The truth window shows you what's been in your water. One look is enough.
Shop now
Free shipping over $40
30-day returns
NSF/ANSI 42 certified*