What energy drink starts with the letter j?

Jolt Cola - (1985 -present)

is a carbonated soft drink produced by Wet Planet Beverages. It was created in 1985 by C. J. Rapp as a highly caffeinated cola. It is targeted towards students and young professionals, stressing its use as a stimulant in a similar manner as energy drinks

Josta (discontinued) - (1995-1999)

launched by a major US beverage company.Josta was a soft drink brand that was produced by PepsiCo. It was the first Energy Drink Josta's flavor has been described as predominately fruity, with a hint of spice and a touch of the key ingredient guaraná. It was marketed as a "high-energy drink" with guaraná and caffeine.