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4.9/5 Excellent | 291+ Reviews

Elevate Your Drinks with Diet Tonic Water Syrup!

Experience a premium 5x quinine concentrate that delivers a more flavorful, health-boosting experience than your typical tonic water.

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Award-winning tonic flavor

Zero sugar, zero carbs, zero calories

Handcrafted with best-in-market ingredients

Just add soda water! (compatible with SodaStream)

order diet TONIC water syrup

"Top Hat Diet Tonic Syrup is 100% a necessity in my house! I’m addicted to this tonic syrup- it is perfect for any time of day!"

Olivia M. | Verified Buyer

The #1 Rated Diet Tonic Water Syrup

"The best! Sugar free and delicious with soda and a slice of lemon!"

Meredith L. | Verified Buyer

"This is how I deal (very succesfully) with restless legs and leg cramps. I've found the best success and value in Top Hat's Sugar Free Tonic Syrup. Leg cramps are a thing of the past!"

Steven S. | Verified Buyer

"Really enjoying the Sugar-Free Tonic Syrup w/ Sugar-Free Ginger Beer!"

Gail T. | Verified Buyer

"Sugar-Free Tonic Syrup is 100% a necessity in my house! I’m addicted to this tonic syrup- it is perfect for any time of day! It doesn’t taste fake or filled with unnatural flavors like a lot of other sugar free beverages. It’s perfectly bitter just how I want it!"

Olivia M. | Verified Buyer

"Amazing, no sugar, great aroma and flavor. It runs out too quickly in our house!"

Desiree T. | Verified Buyer

"I mix the Top Hat Sugar-Free Tonic with Trader Joe’s lemon ginger sparkling water and grapefruit bitters, this is excellent."

Janice S. | Verified Buyer

"I've been using Top Hat Sugar-Free Tonic Syrup for over 2 years and I love it! Great value for the money."

Suzie N. | Verified Buyer

health and wellness in every sip.

Our Diet Tonic Syrup not only tastes great, but also supports your immune system, relieves muscle cramps, and keeps your health journey on track—all without the sugar, carbs, or calories.

Top Hat Diet Tonic Water Syrup contains:

5x premium quinine from the Eastern Congolese highlands to help ease leg cramps and promote relaxation + vitamin C to boost your immune system.

Organic monk fruit to sweeten the tonic with zero sugar, carbs, and calories.

A botanical symphony of elderflower, grapefruit peel, chamomile, and cinchona bark to enhance the bold tonic flavor.

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enjoy the convenience & supreme value of top hat!

Why drive to the store and carry heavy cans of basic tonic water when you can craft 32 servings of delicious Diet Tonic Water right at home with Top Hat?

We've sustainably sourced each ingredient from the best growers and producers around the globe, so you can enjoy the ultimate sugar-free tonic experience from the comfort of your home.

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