About the Brand
About
Loonen is first spring-sourced purified water that's glass-bottled, third-party certified, and tastefully balanced with minerals your body needs. It's a modern bottled water company committed to purity, transparency, and responsible design. The company sources water from protected mountain springs, filters to remove what others miss, rebalances with essential minerals, and bottles exclusively in glass. Every bottle is tested for forever chemicals, microplastics, and over 300 contaminants – then third-party verified with results publicly shared. Loonen is water as it should be. To learn more, visit loonen.com or follow along on Instagram @loonenwater.
Founding Story
When Clara was pregnant with her daughter, she became acutely aware of what she was putting in and on her body. Clara focused on avoiding toxins and plastics, and there seemed to be thoughtful alternatives in nearly every category - from food to personal care to home cleaning. But when it came to water, things got murky.
She couldn’t make sense of what was actually in our tap water, and the more Clara learned about bottled water, the worse it got. What started as an effort to protect her growing family quickly became an urgency to create something better. That’s how Loonen was born.
Loonen is here to lead with purity and transparency and hopes to play a small part in shaping better health outcomes for generations to come.
More here: https://loonen.com/blogs/leading-the-way/our-founding-story?srsltid=AfmBOooH6YLTN9rhI1zlifEewazpe-12UDsksr7820-64VNe5FZT39fn
Signature Products
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Loonen
Food & Beverage / Water & Soda
Loonen
Food & Beverage / Water & Soda
Team & Experts
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Clara Sieg is the Co-Founder and Chief Executive Officer of Loonen, a consumer health startup focused on contaminant-free bottled water, based in San Francisco, California. She earned a Bachelor of Arts degree in Economics from Stanford University before beginning her professional career in the Financial Sponsors and Leveraged Finance group at UBS Investment Bank. In 2010, Sieg became a founding member and Partner at Revolution Ventures, where she opened the firm's San Francisco office and helped raise $350 million across two early-stage venture funds. During her tenure in venture capital, she executed 11 investments and served on the corporate boards of several portfolio companies, including Policygenius and Framebridge. After more than a decade of early-stage investing in consumer technology and fintech, Sieg is currently focused on developing health and wellness products for the consumer market.
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Press Coverage
RUN OREGON
Sep 28, 2026
Loonen: Taking a Lot of Steps to Make a Bottle of Water
And because springs are living systems that can change with the seasons, Loonen tests the water at the source. If a spring no longer meets its standards, the company says it moves on to another source. That last part is actually where the name Loonen comes from....
PALISADIAN POST
Sep 20, 2026
Palisades General Store Celebrates Grand Opening in Highlands
During the opening, the store swarmed with shoppers eager to explore the store's offerings, which range from *Loonen* Water—a high-end brand of bottled water centered on plastic-free filtration and packaging—and specialty tea blends to unique home décor, jewelry, kitchenware and clothing.
BEVERAGE DIGEST
Sep 15, 2026
Premium Start-up Loonen Punches Above Weight in Attention Economy
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DOWNTIME (NEWSLETTER)
Sep 15, 2026
3 Good Things: Annie Meyers-Shyer
Loonen Water. "It's a glass bottle and never touches plastic. It has a very wide mouth, which is amazing, because you can pour electrolytes or anything in it. It's almost like the size of a Hydroflask, it's like the perfect amount of water, and it's just delicious."
DAILY MOM
Sep 15, 2026
Fall Beverage Gift Guide: 35 Cozy Drink Ideas, Cocktail Recipes & Coffee Favorites for Autumn
Loonen Sparkling Water is made with spring-sourced water from Southern California, then purified, rebalanced with minerals, and finished with lively carbonation.
THE HOLLYWOOD REPORTER
Sep 8, 2026
The 50 Most Powerful TV Producers of 2026
If producers had riders, the first thing on mine would be …Aniello "Loonen sparkling water by the case." Downs "Verve Buena Vista coffee beans." Statsky "Popcorn with Sour Patch Kids pre-mixed in." 2026 series I've most admiredAniello "A Knight of the Seven Kingdoms."
THINGTESTING
Sep 7, 2026
How Are Brands Still Selling So Many Reusable Water Bottles?
Glass bottles of ultra-filtered water from *Loonen*, which launched in December 2025, have been photographed with celebrities like Justin Bieber and Dua Lipa, the brand's yellow-and-blue stickers on show. "You buy it, it comes with water, and you can reuse it," says Tavella....
BEAUTY NEWS NYC OFFICIAL
Sep 4, 2026
Better Hair & Hydration: Loonen Spring Water and Petal Fresh Pure Hair ResQ
Hair strands then require products for imparting moisture, volume, and sheen – so here are two brands that supply the hydration and the product expertise: *Loonen* Spring Water's spring-sourced purified water, and the biotin-rich Petal Fresh Pure Hair ResQ....
TOWN & COUNTRY
Aug 31, 2026
The T&C Know It All's Guide to Loaded Water
Now we've moved from obsessing over quantity to quality: whether you're brandishing a bottle of *Loonen*, the status water du jour, or souping up the stuff you get from your sink, evidently plain water just isn't cutting it....
GQ
Aug 30, 2026
8 Celebrity Outfits You Should Steal This Month
First off, he's 6'5", a nice tall glass of *Loonen*, if you know what I mean, so he doesn't need any help elongating his frame. Beyond the midnight navy and black derbies, the accessories are what really make the whole thing sing....
HARD COURT
Aug 28, 2026
Hard Court's night out
Lalo Tequila and *Loonen* water cocktails for the win (Photo: Michaella Jellin)The energy was buzzing from the start, with so much warmth and excitement emanating from people who were finally getting to meet their many internet pals IRL....
BON APPÉTIT MAGAZINE
Aug 26, 2026
Why Is Loonen Water So Hyped?
Why is *Loonen* so popular?Some of Loonen's success can be attributed to the company's clever influencer marketing. "We send water to people who we think might love the product," co-founder Clara Sieg says of Loonen's strategy.She also says people love *Loonen* for its bottle....
VANITY FAIR
Aug 24, 2026
SHE'S ALL THAT
EVERYTHING IT IT WORKOUT Tracy Anderson (still/again) IT DIET Microdosing GLP-1s IT SHIRT Charvet IT GURU Aman Shaman IT MANICURE Bare IT ISLANDS Hydra, Pantelleria, Minorca IT MOUNTAINS Dolomites IT PLASTIC SURGERY Ballerina boob job IT WATER *Loonen* IT JEANS Vintage Levi's (sourced...
WOMEN'S WEAR DAILY
Aug 10, 2026
The 'Luxury' Water Rat Race Isn't as Inexplicable as It Seems
THE DAILY POUR
Aug 10, 2026
Where Does Your Bottled Water Actually Come From?
ELITE DAILY
Aug 9, 2026
Inside My $3K Week Of Living Like An NYC Wellness Influencer
BUY SIDE WSJ
Jul 28, 2026
This Summer's Status Symbol Is a $3.99 Glass Bottle of Water
THE CHALKBOARD MAGAZINE
Jul 26, 2026
It's Hot. Here's What We're Actually Drinking to Stay Hydrated
FAST COMPANY
Jul 16, 2026
Loonen and the rise of consumer safety as status symbol
BON APPÉTIT MAGAZINE
Jul 16, 2026
Will the James Beard Awards Leave Chicago?
ENTREPRENEUR
Jul 14, 2026
She Spent 6 Months Looking for the Perfect Spring Water. What She Found Changed Her Entire Business.
THE CHALKBOARD MAGAZINE
Jul 8, 2026
Living Well with Clara Sieg, Co-Founder & CEO, Loonen
VOGUE
Jun 30, 2026
From Loonen to David, CPG Brands Get an It-Girl Makeover
FASHIONISTA
Jun 30, 2026
Must Read: Nike Tops Q4 Revenue Forecasts, Inside CPG Brands' Revamp Strategy
INC. MAGAZINE
Jun 28, 2026
The Viral Loonen Water Shows Just How Hard It Is to Avoid Plastic Completely
FOX NEWS RADIO
Jun 26, 2026
Bursting the Water Bubble: The Hidden Truth of Bottled Water
THE NEW CONSUMER
Jun 12, 2026
Loonen is the bottled water that hot-girl influencers, Volvo moms, and detail-obsessed product nerds can agree on
CULTURED MAGAZINE
Jun 8, 2026
Solange Knowles Just Curated a One-of-a-Kind Soundtrack to the Art World
FASHION WEEK DAILY
May 31, 2026
The Bollare Penthouse Was THE Place to Prep for Miami Swim Week
FAST COMPANY
May 27, 2026
Forget Evian. PFAS-free bottled water is the new status symbol
ELLE
May 6, 2026
Why Is Every Influencer Drinking This Water Right Now?
PIEDMONT EXEDRA
Apr 30, 2026
Local with Lisa | Loonen Water
THINGTESTING
Feb 17, 2026
How much would you pay to remove microplastics from your body?
BEVNET MAGAZINE
Jan 29, 2026
Reviews: Culture Pop's Black Cherry LTO, Plus Loonen's Pure Water Play
DIELINE
Jan 11, 2026
Colony Helps Loonen Set the Standard For Plastic-Free Bottled Water
BEVNET MAGAZINE
Dec 11, 2025
Loonen Debuts Spring-Sourced Purified Water, Closes $6M Round
WELLWORTHY
Dec 11, 2025
Loonen brings spring water to your door in glass bottles
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