Unrelenting Blue Citrus Energy Supplement. Chron-ic (kron-ik) adj. of long duration; continuing: Kronik Blue Citrus is a thrilling combination of tropical flavors for the ultimate in refreshing energy. Load up with our top tier energy blend. It's easy to see why it's called the unrelenting energy supplement. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.)