|Country of origin||United States|
Gfuel originally released as a caffeinated powder intended to be mixed with water and has expanded its line of products over time to include a non-caffinated version of the powder, a carbonated version in a can, and a pop rock like version in a tube. 
A serving of G Fuel 16 US fluid ounces (470 ml) contains 140 mg of caffeine, which is considered to be higher than other energy drinks such as Red Bull and Monster Energy. The newly introduced cans of gfuel contain 300mg of caffeine, which is significantly more than Gfuel's energy drink competitors, but in line with recent canned energy drinks like Bang.
Consisting of a variety of different flavors such as fruit punch, green apple, and lemonade, the company also offers other flavors made for sponsorships with YouTubers, Twitch.tv streamers, and Esports gamers.
On January 3, 2019, G Fuel announced it was bringing back its previously discontinued pineapple flavor as a FaZe Clan-inspired flavor called "Battle Juice."
G Fuel announced the launch of its new Pink Grapefruit flavor on February 7, 2019. G Fuel said that Pink Grapefruit G Fuel would be available beginning February 13, 2019 in tubs and limited-edition collector's boxes, which include one tub and one Panther Pink shaker cup.
On March 15, 2019, G Fuel announced it will launch a ready-to-drink version in 16-ounce cans available in the summer of 2019 in four flavors: Fazeberry®, Blue Ice, Sour Cherry and Rainbow Sherbet.
G Fuel's ready-to-drink version in 16-ounce cans became available to buy on G Fuel's website on July 15, 2019.
G Fuel and artist Mike Perry announced a new limited-edition raspberry lemonade flavor named "HYPE SAUCE" would be available for sale on G Fuel's website beginning September 12, 2019.
On September 26, 2019, G Fuel announced it will release a new Twitch-inspired flavor at TwitchCon San Diego on September 27, 2019. On September 27, 2019, G Fuel revealed that its Twitch-inspired G Fuel flavor is a sour grape flavor named "Sour Pixel Potion."
In March 2018, G Fuel discontinued coconut, pineapple, and mystery flavor.
One of the ingredients in G Fuel is the compound Taurine, and Gamma Labs has been criticized for not disclosing the quantity of Taurine in G Fuel. CEO Clifford Morgan stated that "There is nothing wrong with Taurine, especially in small amounts".
A 10-year-old boy living in Plymouth, Massachusetts was hospitalized after being disoriented and vomiting. A representative said “he was horrified” and claims this is the first time they have heard of such an instance, and stated that the product is marketed to those over the age of 18 years.
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- "Gamma Labs is bringing back Pineapple as Battle Juice G Fuel". Stack3d. 3 January 2019.
- "Just in time for Valentine's Day: G Fuel Announces New Pink Grapefruit Flavor". PR Newswire. 7 February 2019.
- "Hold Your Controllers: G Fuel in 16-Ounce Cans Launches this Summer". PR Newswire. 15 March 2019.
- "G Fuel to Sponsor BLAST Pro Series in Miami". Cision PR Newswire. April 9, 2019.
- "G Fuel, The Official Energy Drink of Esports®, Is Now Available In 16-Ounce Cans Nationwide". Cision PR Newswire. July 15, 2019.
- "G Fuel Named to Inc. 5000 List for Fourth Consecutive Year". Cision PR Newswire. August 14, 2019.
- "G FUEL And Award-Winning Artist Mike Perry Announce New Limited-Edition HYPE SAUCE Flavor". Cision PR Newswire. September 9, 2019.
- "G FUEL Will Reveal its Secret Twitch-Inspired Flavor at TwitchCon San Diego on September 27". Cision PR Newswire. September 26, 2019.
- "The Twitch-inspired G Fuel is a sour grape flavor named Sour Pixel Potion". Stack3d. September 27, 2019.
- "PewDiePie finally reveals first G FUEL flavor". Dexerto.
- "Gamma Labs discontinues three G Fuel flavors all from 2015". Stack3d. 21 March 2018. Retrieved 17 February 2019.
- Sager, Stacey (3 February 2017). "G Fuel energy drinks big for teen gamers, but are they safe?". ABC7 New York. Retrieved 17 February 2019.
- Loncich, Julie (8 April 2016). "Plymouth Boy Sickened After Drinking Energy Mix On School Bus". CBS Boston. Retrieved 17 February 2019.