Energy Beverages Japan announced that it will launch " Tropical," the third flavor in its " Rainstorm " line of zero-calorie, zero-sugar energy drinks containing plant-based caffeine, on Tuesday, August 18, 2026.
In addition, to commemorate the launch, a giveaway campaign will be held where participants can win a special two-pack of the new “Tropical” flavor.
The new “Tropical” flavor from “Rainstorm” arrives on August 18! Launch Celebration X Campaign Underway
" Rainstorm Tropical " is a light, balanced energy drink designed for daily consumption that defies the common perceptions of energy drinks—such as "too much," "too sweet," or "seems hard on the body."
It contains 0 calories and 0 sugar, and is formulated with plant-derived caffeine from ingredients such as coffee beans, guarana, and green tea.
It is also a nutritional supplement enriched with vitamins C, A, and B6, niacin, and zinc, and contains no preservatives.
Rainstorm’s new “Tropical” flavor is characterized by a fresh, vibrant aroma and a crisp, light mouthfeel.
Evoking tropical fruits, this product is available in a convenient 250ml single-serve size.
It will go on sale nationwide starting Tuesday, August 18, 2026, at convenience stores, drugstores, supermarkets, vending machines, and online retailers.
A giveaway campaign is being held where a total of 1,000 winners will be selected by lottery to receive a special two-bottle set of the new “Tropical” flavor!
To celebrate the launch of this product, we’re holding a giveaway campaign where a total of 1,000 winners will be selected by lottery to receive a special two-pack of the new “Tropical” flavor!
The entry period runs through Sunday, August 9, 2026.
Here’s how to enter:
- 1. Follow the official ReignStorm X account ( @ReignStormJP )
- 2. Repost the campaign post
For details, please visit the official “ReignStorm” website or the official ReignStorm X account ( @ReignStormJP ).
| Product Overview | |
|---|---|
| Name | ReignStorm Tropical Can 250ml |
| Volume | 250ml can |
| Release Date | Tuesday, August 18, 2026 |
| Price | 185 yen (excluding tax) |