In a small saucepan, heat the mixed pre-workout powder with the directed amount of water on the directions over medium heat until steaming hot. There will me wisps of smoke coming of the liquid, just before boiling.
Lower the heat to the lowest setting and whisk in the gelatin one tablespoon at a time, making sure each tablespoon is fully dissolved before adding the next.
Once the gelatin is fully dissolved in the liquid, remove from the saucepan from the heat and use a dropper to fill the gummy molds, being careful to get as few bubble in each as possible.
Place in the refrigerator to set completely, about 10-15 minutes for smaller molds.
Pop them out of the molds and store in an air tight container in the refrigerator for up to 2 weeks.