Frequently Asked Questions
Does Kera actually work for hair thinning?
Yes — by halting the Mineral Mascara Effect that causes mid-shaft breakage, and by resolving the chronic scalp inflammation that suffocates the follicle. We can't change your hormones, but environmental shedding typically accounts for the majority of what most women blame on biology. Most customers report visible reduction in drain shedding within 2-4 weeks.
I rent my apartment — can I install Kera without damaging anything?
It twists onto any standard US shower arm in 60 seconds with no tools. Removes without a trace when your lease ends. Your landlord will never know.
I already tried Jolie / Canopy / AquaBliss and my water pressure dropped to a trickle. Why is Kera different?
Those filters use a single-block carbon design that clogs as soon as it hits real-world municipal water. Kera's Pillar 1 (mechanical filtration) catches debris first, so the chemical pillar (Pillar 2) never gets blocked. Result: 2.5 GPM flow rate, never drops.
Doesn't water need a salt softener to actually be softened?
Correct — we don't claim to soften water via ion exchange. We neutralize the damaging chemical effects of hard water (chlorine + calcium binding to hair) via a redox reaction. Which is what your hair actually needs.
$39.99 is suspiciously cheap. Is this fragile plastic?
Premium rust-proof ABS housing, high-density stainless mesh, and the exact same medical-grade KDF-55 media as the $148-165 brands. We cut the influencer marketing budget, not the manufacturing quality.
Is it safe for color-treated hair?
It's mandatory for color-treated hair. Chlorine oxidation is exactly what turns blonde dye brassy or green between salon visits. Kera ends that.
I'm in perimenopause — will this help?
We can't stop the biological hormonal shift. But we can eliminate the environmental shedding that's compounding on top of it. Most women find that addressing the water-driven portion of their hair loss meaningfully reduces overall shedding even if the biological piece remains.
I'm 8 months postpartum and still shedding. Is that normal?
Postpartum shedding usually resolves by 6 months. If you're still in clumps at 8+ months, that's not your hormones — it's environmental damage compounding the biological reset. Kera ends the environmental part.
I live in Phoenix / Austin / London / Florida — does Kera work for my specific water?
The 20-stage matrix was specifically engineered for the extreme calcium carbonate concentrations found in the US Southwest, UK municipal grids, and other hard-water epicenters.
Does the kit include the showerhead or just the filter cartridge?
Full kit. Includes the Kera matte black showerhead housing, the pre-installed 20-stage cartridge, Teflon plumbing tape, rubber gaskets, and the install guide. Ready to use straight out of the box.
Will it drop my water pressure?
No. Engineered to maintain a full 2.5 GPM flow rate (the US legal maximum). Powerful, drenching shower.
How does the 60-day money-back guarantee work?
Try Kera for 60 days. If the drain clumps don't dramatically decrease, email us at hello@kera.com and we'll refund every penny. No return-shipping nonsense, no restocking fees.
Can I pause or cancel the Subscribe & Save?
Zero commitment. Pause, skip, or cancel your cartridge subscription anytime in one click from your account portal.
Will it leak or rust?
Premium rust-proof ABS housing with included Teflon tape and rubber gaskets. 100% leak-proof seal when installed per the included instructions.
How does Kera compare to a Berkey or whole-house water system?
Whole-house systems run $1,500-3,000 and require a plumber for installation. They're great if you own your home and want every faucet filtered. Kera targets the point-of-use where your skin and hair are most vulnerable — the shower — for a fraction of the cost and zero installation complexity.
How often do I need to replace the cartridge?
Every ~90 days (around 12,000 gallons of water). Subscribe & Save delivers a fresh one automatically. One-time purchase replacement: $19.99 for a single, $49.99 for a 3-pack.
Where is Kera shipped from?
We ship from our US fulfillment partners. Free shipping on orders over $50. Most US orders arrive within 5-9 business days.