Energy Beverages Japan announced the launch of Tropical, the third flavor in the Reign Storm line of zero-calorie, zero-sugar energy drinks formulated with plant-based caffeine, releasing on Tuesday, August 18, 2026.
To celebrate the launch, Energy Beverages Japan will conduct a giveaway campaign offering a special two-can set of the new Tropical flavor.
Note: This article is based on information published in Japan.

New Tropical Flavor From Reign Storm Arrives August 18! Launch Celebration X Campaign Hosted

レインストームから新フレーバー「トロピカル」が8/18(火)新発売⛱️

発売に先駆けてプレゼントキャンペーンを開催?
新フレーバー2本が1,000名に当たる?☀️

一日のスタートや、仕事や勉強の合間、自分時間などエナジーが必要なタイミングにぜひ?@ReignStormJPフォロー&本投稿をリポストして応募? pic.twitter.com/JeaZtMtD5j

— レインストーム (@ReignStormJP) August 3, 2026

Reign Storm Tropical is a light, daily wellness energy drink that overturns common energy drink stereotypes like "too large in volume," "too sweet," or "feels hard on the body."
It is formulated with zero calories, zero sugar, and plant-based caffeine derived from coffee beans, guarana, green tea, and other sources.
Additionally, it functions as a nutritionally fortified food containing vitamin C, vitamin A, vitamin B6, niacin, and zinc, while containing no preservatives.

Reign Storm's new Tropical flavor features a lush, vibrant aroma and a crisp, light finish.
Evoking tropical fruits, this product is packaged in an easy-to-finish 250ml can.
Sales begin starting Tuesday, August 18, 2026 at convenience stores, drugstores, supermarkets, vending machines, and e-commerce platforms nationwide.

Giveaway Campaign Offering a Special Two-Can Set of the New Tropical Flavor to a Total of 1,000 Winners!

Special Two-Can Set of New "Tropical" Flavor — Special Two-Can Set of New Tropical Flavor

To celebrate the launch of this product, a giveaway campaign offering a special two-can set of the new Tropical flavor to a total of 1,000 winners via raffle is underway!
The application period runs until Sunday, August 9, 2026.
How to enter is as follows: