Lifeguard Infinity

Posted on September 5, 2022 | Last updated February 2, 2025

Lifeguard Infinity by Cheerio, available in vending machines in western Japan. I picked this up during a trip to the Kansai region.

Cheerio's energy drinks appear to be categorized into Lifeguard X, which is sold in the Kanto region, and Lifeguard Infinity, which is available in the Kansai region.
Lifeguard X is available in Kanto, while Lifeguard Infinity is sold in Kansai.

Lifeguard Infinity

Manufacturer	Cheerio
Country of Origin	Japan
Price	100 JPY
Flavor	Chemicals
Total rating	★★★☆☆

Features and recommendations for Lifeguard Infinity

甘いケミカル系フレーバー
ガチガチの薬品感ではなく、ライフガード寄りで一般にも楽しめる風味

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.

Flavor of Lifeguard Infinity

Upon opening, it has a vitamin-like scent with a slight chemical note—just like Lifeguard X. The color is an easy-to-recognize neon yellow.
Flavor of Lifeguard Infinity
The taste matches the aroma: a sweet, vitamin-infused, slightly artificial energy drink flavor. It combines a kid-friendly sweetness with an almost "unhealthy" energy drink feel, staying true to the classic Lifeguard profile.

But here's the thing—it tastes almost identical to Lifeguard X. So, what’s the difference? Let’s compare them.

Flavor of Lifeguard Infinity
When poured into a glass, both smell and look the same. If shuffled, it would be difficult to tell which is which.

Drinking them side by side, the differences are barely noticeable at first. However, Lifeguard Infinity has a richer, more pronounced sweetness with a noticeable chemical undertone, while Lifeguard X is slightly less sweet with a mild tartness. The difference in sweetness is quite clear.

However, if you drink them alternately, their similar base flavor makes it difficult to distinguish their nuances.

Energy Ingredients of Lifeguard Infinity

Energy Ingredients of Lifeguard Infinity
Contains 80mg of caffeine, 800mg of arginine, 800mg of maca, honey, and royal jelly.

Both Lifeguard Infinity and Lifeguard X have similar energy ingredient compositions, but their ingredient ratios vary.
Energy Ingredients of Lifeguard Infinity
Lifeguard X has a noticeably higher maca content, while Lifeguard Infinity features a more balanced ingredient distribution, making it feel like a more traditional energy drink.

Design of Lifeguard Infinity

Lifeguard Infinity was initially released in 2016 as a limited-edition Cheerio 30th-anniversary product containing taurine. Later, it was reformulated without taurine and re-released in this 250ml can.
Design of Lifeguard Infinity
The gold can reflects the drink’s vibrant color, featuring the Lifeguard logo alongside a mysterious infinity symbol, enhancing its energy drink aesthetic.

When placed next to Lifeguard X, released in 2014, they look like sibling products.
Design of Lifeguard Infinity
In Tokyo, you can find Lifeguard Infinity in vending machines at "Lifeguard Square" in Harajuku. However, in its main sales region, western Japan, it’s stocked in Cheerio vending machines scattered throughout the cities.

チェリオの自販機！
東京人には珍しいやつ????
あとこの緑のやつ持ってなかったんだよね。#エナジードリンクトラベラー pic.twitter.com/XmklMlBlM7
— エナジー・ドリン君エナジードリンクマニア (@energydrinkun) July 16, 2021

It’s always fun to stumble upon them while exploring. This is what we call "the hunt." If you’re traveling, be sure to keep an eye out for Cheerio vending machines.