For health-conscious individuals who are watching their weight and diet—especially those avoiding sugar and starch—sugar-free syrup made from stevia has become an ideal choice. These syrups allow people to enjoy sweet flavors without the unwanted calories or blood sugar spikes.
In Thailand, there is a growing variety of sugar-free syrups available in different flavors and brands. Today, we introduce five of the most popular and noteworthy stevia syrup brands for 2025.
1. Seasun Sugar-Free Syrup
Seasun is one of the first Thai brands to research and develop sugar-free syrup, emphasizing high-quality production. The brand’s formula was created in collaboration with researchers from the Faculty of Agricultural and Biological Science at Chandrakasem Rajabhat University and manufactured in the prototype food innovation facility at the Thailand Institute of Scientific and Technological Research (TISTR).
It targets various groups including health-conscious consumers, the elderly, diabetics, pregnant women, and children. Seasun syrups are sugar-free, calorie-free, tooth-friendly, and preservative-free. The brand is certified by Thailand’s FDA, GHPs & HACCP, and Halal.
Its sweeteners are a blend of:
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Stevia (imported from Japan)
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Inulin
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Erythritol
This combination creates a flavor profile close to real sugar, so consumers don’t need to adjust their taste preferences.
Available in two main formulas:
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Zero Sugar
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Keto-Friendly
Total flavors available: 29
Popular Flavors: Cola, Thai Tea, Salacca, Hokkaido Sweetened Milk, Caramel
Where to Buy:
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Website: https://www.seasunzone.com/
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Shopee: https://shopee.co.th/seasunzone
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Line: @seasun
2. Whole Sweet
Whole Sweet is a syrup developed by food scientists and Japanese sweetener experts over four years to create a natural sweet taste without sugar. Using stevia as its core ingredient, this syrup offers over 15 flavors that are rich and sugar-free.
Popular Flavors: Cola, Mixed Fruit, Salacca, Lychee
Where to Buy:
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Facebook: https://www.facebook.com/wholesweet
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Shopee: https://shopee.co.th/wholesweet
3. Katts Stevia Syrup
Katts offers a sugar-free, zero-calorie syrup that’s also free from MSG. It’s made using stevia and erythritol as sweeteners and comes in a 500 ml bottle that yields about 50 servings. The product targets the keto community, health-conscious consumers, diabetics, and pregnant women. It comes in nearly 30 flavors and has a shelf life of one year.
Popular Flavors: Mandarin Orange, Cola, Thai Tea, Blueberry Cheesecake
Where to Buy:
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Facebook: https://www.facebook.com/KATTSsteviasyrup/
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Line: https://lin.ee/PRjSK96
4. TEA: Sugar-Free Syrup
TEA offers a stevia-based concentrated syrup with no sugar and no calories, making it ideal for health lovers and keto dieters. Each 320 ml bottle makes 20–30 servings and is suitable for mixing with water, tea, soda, black coffee, or healthy milk alternatives. About 15 flavors are available.
Popular Flavors: Classic Syrup, Thai Tea, Salacca, Cola
Where to Buy:
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Facebook: https://www.facebook.com/teacorporation.thailand/
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Shopee: https://shopee.co.th/teacorp
5. Estevia Syrup
Estevia’s Stevia KETO Syrup is 4–5 times sweeter than regular sugar and can be used in drinks like tea, coffee, or desserts. It doesn’t affect blood sugar levels, making it suitable for diabetics, keto dieters, and anyone trying to limit their sugar intake.
Key Ingredients: Steviol glycosides, Glycerol, Erythritol, Water
Popular Flavors: Classic Syrup (Only one flavor available)
Where to Buy:
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Website: https://www.estevia-herb.com/
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Line: @estevia
Conclusion
Stevia syrup is an excellent sugar alternative for those managing weight, blood sugar, or simply seeking healthier lifestyles. With the increasing demand in 2024 and into 2025, this market continues to grow. Consumers are encouraged to purchase from reputable sources and review product labels carefully before buying.
