[5][6] A driving force behind the candy's early popularity were informal competitions among school-children to determine who could withstand eating the largest number of Warheads at once.

[10][11] Warheads packaging includes this warning: "Eating multiple pieces within a short time period may cause a temporary irritation to sensitive tongues and mouths".

[12] Warheads Extreme Sour Hard Candies are available in five flavors: blue-raspberry, lemon, green-apple, black-cherry, and watermelon.

[13] Five additional hard candy flavors are sold in the "Smashups Extreme Sour" assortment: cherry-lime, orange-pineapple, mango-melon, lemon-berry, and strawberry-grape.

[citation needed] In early 2017, Warheads introduced the sub brand "Hotheads" which featured a line of spicy gummy worms (Extreme Heat Worms) and filled licorice bites (Scorching Heat Twists) that were discontinued a few years later.