5,391+ filters shipped worldwide
SYNONX
Engineered for Clean Living
Your shower water is damaging your skin and hair.
SYNONX fixes that.
Most municipal water contains chlorine, heavy metals, and bacteria that strip your skin's natural barrier and dry out your hair with every shower. SYNONX removes up to 99% of contaminants before the water ever touches you.
Eliminates the chemical stripping your skin dry every morning
Lead, mercury, and iron gone before they reach your scalp
Cleaner water at the shower head interface
KDF-55, Calcium Sulfite, Coconut Shell Carbon, Vitamin C
Replace twice a year, not every 90 days like other brands
Fits any standard G1/2 shower connection
We remove what
you cannot see.
Most people don't think about what's in their shower water. Here's what the research shows.
That limescale buildup on your shower head, walls and glass? That's the same mineral residue your skin and hair are absorbing every time you shower.
Chlorine
Up to 4 ppmStrips natural oils from skin and hair. Linked to dryness, irritation, eczema flare-ups, and premature aging. Damages the skin barrier with every shower.
Source: Added by water treatment plants as a disinfectant
Lead
Up to 15 ppbAccumulates in the body over time. Associated with neurological damage, developmental issues, and kidney problems. Absorbed through skin contact.
Source: Corroding pipes and plumbing fixtures
Chloramine
Up to 4 ppmHarder to remove than chlorine. Causes skin rashes, respiratory irritation, and damages hair protein structure. Many filters miss it entirely.
Source: Secondary disinfectant used in municipal water
Heavy Metals
Varies by regionMercury, nickel, and iron damage hair follicles, cause scalp irritation, and contribute to hair thinning. Iron leaves orange staining on fixtures.
Source: Industrial runoff, aging infrastructure, natural deposits
VOCs
VariesVolatile organic compounds vaporize in hot showers, creating chemical gas you inhale. Associated with headaches, nausea, and long-term organ damage.
Source: Pesticides, herbicides, industrial solvents in groundwater
Bacteria & Fungi
Colony-formingBiofilm buildup inside pipes and shower heads harbors harmful microorganisms. Can cause skin infections, respiratory issues, and worsen existing conditions.
Source: Pipe biofilm, stagnant water, warm shower environments
SYNONX removes these contaminants at the source with 4-stage filtration — so you never have to wonder what is touching your skin.
Multi-stage filtration.
One clean result.
KDF-55
Targets heavy metals, bacteria, and fungi with high efficiency even at hot shower temperatures.
Calcium Sulfite
Primary chlorine removal stage, engineered specifically for maximum temperature stability.
Coconut Shell Carbon
Captures chloramines, volatile organic compounds (VOCs), and chemical odors.
Vitamin C Ceramic Balls
Final neutralization stage, infusing water with skin-nourishing and protecting antioxidants.
Under two minutes.
Zero tools.
Universal G1/2 thread seamlessly integrates with all standard shower arms and heads worldwide.
Unscrew
Remove your existing shower head by hand.
Attach Filter
Twist the SYNONX filter onto the shower arm.
Reattach Head
Twist your shower head onto the filter outlet.
Replace.
Refresh.
Repeat.
To maintain peak performance, the internal 4-stage cartridge should be replaced every 6 months. Subscribe for seamless, automated delivery.
Stay in the loop
Join the SYNONX community
Be the first to know about new products, exclusive offers, and clean water tips delivered straight to your inbox.
No spam. Unsubscribe anytime.
Reviews
Real results. Real people.
Hear from people who made the switch to filtered shower water.
My skin has never felt this soft
"I have struggled with dry, irritated skin for years. Within two weeks of using the SYNONX filter, the difference was undeniable. My skin feels softer after every shower, and the redness I used to get on my cheeks has completely gone. I did not realise how much damage unfiltered water was doing."
Sarah M.
Toronto, Ontario
My eczema flare-ups have reduced dramatically
"I have dealt with eczema since I was a teenager. Dermatologists, creams, everything. A friend recommended filtering my shower water and I was sceptical, but after six weeks with SYNONX my flare-ups have reduced by at least 70%. I wish I had tried this years ago."
James K.
Austin, Texas
My hair is noticeably healthier
"The chlorine in our water was destroying my natural hair. It was brittle, dry, and breaking constantly. Since installing the filter, my curls are more defined, my scalp feels cleaner, and I am losing far less hair in the shower. The difference is visible."
Amara O.
Vancouver, British Columbia
No more itchy scalp after every shower
"I used to finish every shower scratching my head. Tried different shampoos, nothing worked. Turns out it was the water. Two weeks after installing SYNONX, the itching stopped completely. Simple as that. Installation took about a minute."
David L.
Denver, Colorado
The breakouts on my back cleared up
"I had persistent body acne on my back and shoulders that no product could fix. My dermatologist suggested it might be related to water quality. I installed the SYNONX filter and within a month, the breakouts started clearing. Three months in, my skin is the clearest it has been in years."
Elena R.
Miami, Florida
I can actually feel the difference in the water
"The first shower after installing the filter, I noticed it immediately. The water felt different on my skin, softer, less harsh. My daughter has sensitive skin and she stopped complaining about itchiness after baths. It is a small change that made a real impact for our whole family."
Priya S.
Calgary, Alberta
My colour-treated hair lasts so much longer
"I spend a fortune on my hair colour and it used to fade within weeks. My stylist mentioned chlorine in shower water could be stripping it. After switching to SYNONX, my colour holds noticeably longer and my hair feels less dry between washes. It has genuinely saved me money."
Michelle T.
Brooklyn, New York
The dry patches on my arms are gone
"Every winter I would get rough, flaky patches on my forearms and shins. I assumed it was just the cold weather. Installed the SYNONX filter in October and for the first time in years, I made it through winter without a single dry patch. The water quality here is worse than I thought."
Ryan C.
Montreal, Quebec
My morning routine finally makes sense
"I was spending hundreds on serums and moisturisers, but my skin never felt hydrated. Turns out the unfiltered water was undoing all of it. Since using the filter, my products actually absorb properly and my skin stays soft throughout the day. I cannot believe the difference."
Jessica H.
Los Angeles, California
Installed it in one minute, noticed it the same day
"I was not expecting much honestly. But the very first shower felt different. The water felt lighter, cleaner. My wife noticed too. We have hard water in our area and this filter has made a real difference for both of us. Setup was effortless."
Marcus W.
Ottawa, Ontario
My toddler's sensitive skin improved within days
"My two-year-old would get red, irritated skin after every bath. We tried every baby wash on the market. A friend suggested it might be the water itself. We installed the SYNONX filter and within a few days, the irritation calmed down. She is so much more comfortable now."
Tanya F.
Chicago, Illinois
Worth every dollar
"I was on the fence about spending on a shower filter but decided to try it. Three months later, my skin is clearer, my hair feels thicker, and I actually look forward to showering. The cartridge lasts six months so the ongoing cost is minimal. Best purchase I have made this year."
Andrew P.
Edmonton, Alberta
Designed in Toronto.
Built for the world.
30-Day Returns
Unopened and unused products returnable within 30 days. Defective items replaced at no cost.
CE Certified
Meets European conformity standards for safety and environmental requirements.
RoHS Compliant
Free from hazardous substances. Compliant with restriction of hazardous materials.
Universal Fit
G1/2 universal thread standard. Compatible with all standard shower connections worldwide.
Get in touch.
Have a question about our products, need support, or want to learn more? We are here to help.
