Own it for 99 cents. 240 calories per can. Consumer comments? 1-866-228-3666. When you want to stay razor sharp and are ready to take on the world, you need the venom of black mamba. Venom packs a powerful payload of strong, fierce energy - taurine, guarana, l-carnitine, ginseng and B vitamins. Take on the world and own it! Please recycle. 160 mg caffeine per 16 fl oz serving. Energy Blend per 16 fl oz: 4943 mg. Caffeine, taurine, guarana extract, l-carnitine, ginseng extract, inositol, maltodextrin.