Stacker 2 Black Jax

Price: $2.99 Serving Size: 1.70oz. Servings Per Container: 1.0
Calories: 40 Carbohydrates: 10g Sodium: 0mg
Editor Rating: 2 of 10
User Rating: 3.00 of 10 with 7 reviews

Active Ingredients:
Stacker 2 Black Jax contains a single 1.7 Fl. Oz. serving comprised of (mg/USRDA whichever or both if listed): 40 Calories, Carbohydrates 10g/3%, Sugars 10g, Vitamin C 200%, Vitamin B1 100%, Vitamin B3 200%, Vitamin B5 100%, Vitamin B6 2000%, Vitamin B7 100%, Vitamin B9 100%, Vitamin B12 10000%, also a 10g "Prorietary Energy Blend" which consists of undisclosed amounts of (including, but not limited to): Caffeine, Taurine, Crystalline Fructose, Guarana, Ginseng and Yerba Mate.

Stacker 2 Yellow Jacket Energy Shot

Price: $1.07 Serving Size: 1.70oz. Servings Per Container: 1.0
Calories: 40 Carbohydrates: 10g Sodium: 0mg
Editor Rating: 3 of 10
User Rating: 4.51 of 10 with 104 reviews

Active Ingredients:
A sparse allocation of B vitamins, in true stacker fashion, they list caffeine as an ingredient, but give you no indication of how many mg. taurine (undisclosed amount), pantothenic acid (undisclosed amount), yerba mate (It is a slightly less potent stimulant than coffee and much gentler on the stomach. Drinking mate with friends from a shared hollow gourd, also called a mate in Spanish, or cabaça or cuia in Portuguese, with a metal straw (a bombilla in Spanish, bomba or canudo in Portuguese, is an extremely common social practice in Argentina, Uruguay, Paraguay, southern Chile, eastern Bolivia and Brazil and also Syria and Lebanon. Source Wikipedia), Guarana, Ginseng

Stinger Enraged Raspberry

Price: $1.99 Serving Size: 8.40oz. Servings Per Container: 1.0
Calories: 130 Carbohydrates: 34g Sodium: 55mg
Editor Rating: 1 of 10
User Rating: 1.48 of 10 with 138 reviews

Active Ingredients:
Caffeine, taurine, b-stack, biotin.

Stinger Pounding Punch

Price: $1.99 Serving Size: 8.40oz. Servings Per Container: 1.0
Calories: 130 Carbohydrates: 34g Sodium: 55mg
Editor Rating: 2.5 of 10
User Rating: 2.03 of 10 with 153 reviews

Active Ingredients:
Caffeine, taurine, b-stack, biotin. I think it's interesting that this contains biotin which most energy drinks do not. Biotin plays a part in fat metabolism, synthesis and release of insulin, as well as the Kreb Cycle which is the process of food releasing energy. So it makes sense that it may be found in an energy drink. Biotin helps maintain steady levels of blood sugar so is also helpful for people with type 2 diabetes. Lastly biotin is used to strengthen hair and nails, so is often found in cosmetic and health care products for hair and skin.