Alchemy Labs Yakka High Stim Pre Workout NYT: Hollywoods Premier Fashion Camp, for Ages 6 and Up. Kids spend a. YAKKA [yak uh] (noun): 1. work or labor, especially physical or manual work. Elevate your training with YAKKA, the ultimate pre workout formula designed to deliver unparalleled energy and insane pumps. Crafted for those who demand the most from their workouts, YAKKA combines cutting edge ingredients to fuel your performance and push your limits. Out Work. 500mg of total stims! Provides a potent, fast acting energy boost to power your training, while zumXR provides a slow extended release of caffeine to power those long intense workouts.*