REIGN SOUR APPLE

Posted on July 23, 2021 | Last updated February 4, 2025

REIGN SOUR APPLE
The Sour Apple flavor from REIGN, a new energy drink brand by Monster Energy, released in 2019.

With 300mg of caffeine, zero calories, zero sugar, and no artificial coloring, this American fitness energy drink sticks to a classic formula while offering an excellent green apple flavor.

REIGN SOUR APPLE

Manufacturer	REIGN
Country of Origin	USA
Price	2.49 USD
Flavor	Apple
Total rating	★★★★☆

Author information Author: Energy Drink-kun

In 2001, while living in the United States, I encountered energy drinks through the dance scene and was deeply impressed. After returning to Japan, I found that energy drinks were considered novelty beverages, so I established a comprehensive website in 2013 to share the true appeal of energy drinks. As an energy drink enthusiast, I began drinking them seriously again, collecting over 7,000 varieties of energy drinks from various countries. I am also active as a critic and expert, receiving media interviews.

Classic Green Apple Flavor, No Zero-Zero Taste!

Opening the can releases a refreshing green apple aroma. Oh, this smells like it’s going to be delicious! The liquid inside is colorless and transparent, as is typical for fitness energy drinks.
REIGN SOUR APPLE
When you take a sip, you get a sweet and sour, classic green apple flavor. There’s no extreme sourness; it's a refreshing green apple flavor that’s simply delicious.

Despite being a zero-zero drink, it surprisingly captures the authentic taste of green apple fruit, and its level of completion is high.

With this taste, I almost think there's no need to drink sugary sour apple anymore. Of course, the artificial sweetener aftertaste is completely eliminated, which is surprising.

Honestly, if you were told that REIGN SOUR APPLE was a sugared sour apple drink, you might not even notice that it’s a zero-zero.

Zero-zero drinks tend to lose flavor when chilled, but even when you add ice to REIGN SOUR APPLE, the sweet and sour green apple flavor remains strong, and the aftertaste lingers, making it enjoyable without the typical zero-zero feel.

Energy Ingredients of REIGN SOUR APPLE

REIGN SOUR APPLE
Contains 300mg of caffeine, BCAA, and CoQ10. With a high caffeine content, it is recommended to limit consumption to one can per day. If you're drinking coffee or tea as well, be cautious about caffeine overdose.

Design of REIGN SOUR APPLE

REIGN SOUR APPLE
The black can has a textured finish, with yellow-green and yellow REIGN logos that reflect the sour apple theme. It reminds me of the early designs of the Bang Energy Drink with a similar texture.

REIGN SOUR APPLE
The back has a silver background with logos representing sports functionalities. The rival Bang series, a top brand in this scene, doesn't have these functional logos. Personally, I think it’s fine without them.

The REIGN series is great for sports and strength training, but the 300mg of caffeine provides a strong awakening effect, making it perfect for focus before studying or work as well.