Unfortunately the manufacturers of Silverback Extreme have not disclosed the levels of caffeine in their product.
Sliverback Extreme is an energy drink from Colonial Beverages.
DISCONTINUED It appears this product is no longer available.
Ingredients in Silverback Extreme
Carbonated water, sucrose, glucose, citric acid, natural flavors, taurine, tyrosine, caffeine, glycine, sodium benzoate, potassium sortbate, calcium pantothenate, nicotinic acid, pyridoxine hydrochloride, vitamin B12
Sugar content: 27 grams (per 8.4 ounces).Compare sugar levels of other drinks