From the in brand, well-known for the 10-second charge, in TANSAN Lemon Flavor and in TANSAN Grapefruit Flavor were updated and released on Tuesday, June 3, 2025.
This carbonated drink applies the technology of in Jelly and is a new-sensation drink that reacts with strong acid like gastric juice to change into a jelly-like state and expand.
It was reportedly developed as a drink for hunger management to help manage unplanned snacking, specifically targeting people who impulsively want to eat due to stress or those who cannot concentrate on work because they are feeling hungry.
Since this is intriguing, I will be doing a tasting review of in TANSAN Lemon Flavor and in TANSAN Grapefruit Flavor!
Reviewing in TANSAN Lemon Flavor and in TANSAN Grapefruit Flavor, the Carbonated Drinks That Become Jelly!
in TANSAN Lemon Flavor and in TANSAN Grapefruit Flavor are currently on sale to great acclaim.
The packaging is reminiscent of the in Jelly that we rely on when busy, but the contents are carbonated drinks.
The words hunger management and expands are on the package!
Furthermore, it is nice that they are infused with GABA to alleviate stress while being caffeine-free, low-calorie, or zero-calorie.
Checking the Nutrition Facts Label
First, let's look at the nutrition facts label for in TANSAN Grapefruit Flavor.
The nutrients per can (190ml) are as follows:
- Energy: 0kcal
- Protein: 0g
- Fat: 0g
- Carbohydrates: 5.8g (Sugars: 5.4g, Dietary Fiber: 0–1.2g)
- Salt Equivalent: 0.15g
- Gamma-Aminobutyric Acid (GABA): 28mg
- Caffeine: 0mg
Next is in TANSAN Lemon Flavor.
The nutrients per can (190ml) are as follows:
- Energy: 33kcal
- Protein: 0g
- Fat: 0g
- Carbohydrates: 11.9g (Sugars: 11.3g, Dietary Fiber: 0–1.2g)
- Salt Equivalent: 0.23g
- Gamma-Aminobutyric Acid (GABA): 28mg
- Caffeine: 0mg
The Grapefruit Flavor seems good for those who want to strictly suppress calories, but the Lemon Flavor is also infused with Palatinose, a sustained-release carbohydrate with an absorption speed about one-fifth that of sugar, allowing for healthy carbohydrate intake.
Now, the Actual Tasting!
I wonder what it feels like for what you drank to change into jelly and expand inside your stomach...!
First, starting with in TANSAN Grapefruit Flavor!
Saiga NAK
It is slightly cloudy, but the scent is not strong and there is almost no coloring.
When I actually drink it, I can faintly taste the grapefruit flavor, but since it is zero calories, there is no sweetness, giving it a refreshing impression combined with the carbonation.
It is like a faintly scented sparkling water—a drink I can recommend to people who dislike sweetness.
Saiga NAK
Next is in TANSAN Lemon Flavor.
It has a solid lemon flavor from the scent alone.
The moment it enters your mouth, the refreshing lemon scent and sparkling sensation spread, and it is delicious!
It has a taste like honey lemon with more sweetness than acidity.
It seems like it would satisfy cravings when you want something sweet.
A little while after the tasting... wait, is my stomach starting to feel full?
It is a strange sensation where the stomach expands even though I haven't eaten anything.
It was amazing that I didn't feel hungry for more than 2 hours afterward.
It was true that it changes into jelly in the stomach to support hunger!
in TANSAN Grapefruit Flavor is sold at the following:
The hunger management drink in TANSAN Lemon Flavor is sold at the following:
Please understand if they are sold out as they are popular products.
From now on, when you want to snack during the busy year-end season, let's get through it by deliciously satisfying your hunger with in TANSAN!
Check the in TANSAN Official Website for details.
