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- Removes 99.9% of free chlorine from shower water
- Reduces dryness, irritation, and tightness after showering
- Helps preserve color-treated hair and reduce frizz
- Infuses five vitamins (C, E, B5, B12, Biotin) for skin and hair
- Consistent performance from Day 1 through Day 90
- Unscrew your existing showerhead
- Attach the Second Shower filter to the shower arm
- Screw your showerhead back on top — no tools needed
Replace the filter every 1–3 months depending on water quality. The Truth Window shows when it's time.

The Science
Feel the difference of truly clean water.
Removes Chlorine
99.9% of chlorine is neutralized before water touches your skin.
Engineered to Perform
Vitamin C reacts instantly — consistent from Day 1 to Day 90.
Nourishes Skin & Hair
Five vitamins infused into every shower for softer skin and stronger hair.
NSF/ANSI 42 Certified*
PP sediment filter independently tested and certified to NSF/ANSI 42 standards.
The Science
99.9%
Removal rate. First day to last.
Second Shower (Vitamin C)Ours
Typical KDF / Carbon Filter
Vitamin C neutralizes chlorine chemically. The reaction never stops working.
The Comparison
How Second Shower
Compares.
|
Our Pick
Second Shower |
KDF / Carbon Filters | |
|---|---|---|
| Clinically tested & NSF/ANSI 42 certified*PP sediment filter | ||
| Consistent performance over full lifespanNo degradation at Day 60 | ||
| Removes 99.9% of chlorine | ||
| Infuses vitamins into water | ||
| Transparent filter with Truth Window | ||
| Maintains water pressure176 precision micro-jets | ||
| Works with any standard shower arm |
*PP sediment filter certified to NSF/ANSI 42 standards. Chlorine removal claims based on independent laboratory testing of Vitamin C filtration.
The Technology
Unlike typical filters, ours never stops working.
Vitamin C reacts with chlorine on contact — a consistent chemical reaction that doesn't degrade over time like KDF and carbon filters.
- Vitamin C neutralizes chlorine on contact
- Consistent performance from Day 1 to Day 90
- No degradation — unlike KDF and carbon
The Journey
Benefits that build over time
Here's what to expect with daily use of your Second Shower filter.
See Clinical Data →Instant chlorine removal
From your very first shower, 99.9% of chlorine is neutralized. You'll feel the difference in water softness immediately.
Skin feels calmer, less tight
Without daily chlorine exposure, your skin's natural moisture barrier starts recovering. Less dryness after showering.
Visible hair and scalp improvement
Hair retains more natural oils. Reduced breakage, less frizz, and color-treated hair stays vibrant longer.
Full skin and hair transformation
Your skincare products work better. Hair is noticeably stronger. The difference is clear — and so is your filter's Truth Window.
Subscribe & Save
Clean water, delivered.
Your First Order
The Welcome Kit
Everything you need to get started: handheld showerhead, first filter, and installation guide.
Sustainable Refills
Fresh filters, on schedule
3-pack filters delivered every 3 months. Cancel or pause anytime.
3-pack filters
3-pack filters
The Standard
Rigorous testing that
sets a higher standard.
*Micron PP sediment filter certified to NSF/ANSI 42 standards. 99.9% chlorine removal via Vitamin C tested independently. Engineered to exceed industry standards for water filtration.
NSF/ANSI 42 Certified*
PP sediment filter independently tested and certified to NSF/ANSI 42 standards for particulate reduction and material safety.
Lab-Verified 99.9%
Third-party laboratory testing confirms 99.9% free chlorine removal.
Safe Materials
Food-grade Vitamin C and medical-grade components. No heavy metals.
Engineered in Seoul
Designed and precision-engineered in South Korea with 176 micro-jets.
Getting Started
Three steps. Sixty seconds.
Install the Mount
Attach the included shower mount holder to your wall-mounted shower arm.
Connect the Hose
Screw the included hose onto the mount. Attach Showerhand to the other end.
Add an Infuser (Optional)
Pop in an aroma infuser for spa-like experience. Flush for 30 seconds.
Questions?
We're here to help.
How is this different from a basic shower filter?
Most handheld shower filters use carbon or KDF — they lose effectiveness within weeks and can never guarantee 99.9% chlorine removal across the filter's life. Second Shower uses food-grade Vitamin C, the same ascorbic acid hospitals use for dechlorination. It neutralizes chlorine through a direct chemical reaction, so removal stays at 99.9% for the entire 30–60 day life of the filter. Our PP sediment filter is also independently certified to NSF/ANSI 42 standards — third-party verified, not self-reported.
Will it work with my existing shower setup?
Yes. The Showerhand kit includes everything you need: the handheld wand, hose, wall mount, plumber's tape, and a starter aroma tablet. It threads onto any standard 1/2" NPT shower arm — that's 99% of US showers. Tool-free installation, about 5 minutes. We strongly recommend using the included hose — third-party hoses sometimes have incompatible rubber packing that causes pressure loss with our filtration core.
How long does the filter last?
Every 1–2 months for the handheld. The Truth Window shows you exactly when — the filter darkens as it captures sediment and metals, and the white Vitamin C powder in the lower chamber clears as it depletes. Subscribe and we deliver a 3-pack every 90 days for $27 (vs $29 one-time). Skip, pause, or cancel anytime — no fees, no friction.
Will it lower my water pressure?
No. 128 micro-jets are engineered to deliver full coverage at standard residential pressure. If you're in a high-pressure home, there's a small flow regulator (a blue disc) you can pop out for even more punch — totally safe to remove. Most customers say it actually feels stronger than their previous showerhead because the spray is more focused.
Why is my filter brown after a few weeks — is something wrong?
It's the opposite. Brown and orange are sediment, rust, and heavy metal particles the filter captured from your tap water through micron filtration. It's not mold or bacteria — it's exactly what would have ended up on your skin and hair every shower. Filtration actually improves as the chamber fills, because the micron gaps tighten as particles collect. The Truth Window is showing you proof that it's working.
Is it gentle enough for babies, pets, or sensitive skin?
Yes — it's actually gentler than what comes out of your tap. Vitamin C is food-grade (the same kind in supplements) and the filter removes the irritants that cause dryness and reactions in the first place: chlorine, chloramine, sediment. Many of our customers bought the Showerhand specifically for babies, eczema-prone family members, and pets. The handheld format also makes rinsing kids, washing pets, and accessibility easier than a fixed wall-mount.
Can I cancel the subscription anytime?
Yes. Skip any shipment, change the schedule, or cancel entirely — all from your account or a one-line email to hello@secondshower.us. No fees, no penalties, no "sorry to see you go" phone calls. The subscription is just $27 every 90 days for filters (vs $29 one-time) and we earn the renewal each cycle.
What's the difference between this and the wall-mount Showerhead?
Same filtration core, different format. The Showerhand is handheld with a hose — ideal for flexibility, rinsing kids, bathing pets, or accessibility. The Showerhead is wall-mounted with 176 micro-jets and a longer-lasting filter (2–4 months vs 1–2). The Showerhand also has an infuser chamber for optional aroma tablets. Both have the same Vitamin C filtration for 99.9% chlorine removal, the same NSF/ANSI 42 certified PP sediment filter, the same five-vitamin infusion, and the same Truth Window. Pick the format that fits your shower habits.
See what you've been showering in.
Your first filter will tell you everything you need to know about your water.
Shop now

