Function: Alternative Energy Drink, Citrus Yuzu, 16.9 Ounce Bottle (Pack of 12)
- 100% Natural, preservative free, noncarbonated.
- Created by Physicians
- Unique functionality
- Proven ingredients and formulations based on clinical science
- Active Ingredients: Muira Pauma, Epimedium, Guarana, Yerba Mate, Catuaba
Function Alternative Energy: Provides all-natural time-release, long-lasting energy for 6-8 hours
Rating: 
(out of 2 reviews)
Price: $ 25.58
Review by Susan A. McKeen for Function: Alternative Energy Drink, Citrus Yuzu, 16.9 Ounce Bottle (Pack of 12)
Rating:
Function Drinks Alternative Energy is an excellent energy source. Don’t let the great taste fool you into thinking this just a refreshing beverage. The energy boost is subtle and long-lasting. My husband didn’t feel noticeably energized when he drank this at 2pm; however, he realized he was very energized when midnight came and he couldn’t fall asleep! Alternative Energy works very well and the energizing effects can last as long as 10 hours. Great for students, working professionals, and busy moms!
Review by quizquest for Function: Alternative Energy Drink, Citrus Yuzu, 16.9 Ounce Bottle (Pack of 12)
Rating:
I have a number of health problems that result in extreme fatigue. This is the only drink I have ever found that helps, and it can actually give me enough energy to “function” for a while even when I’m feeling really bad. The only other drink that has ever worked is JavaMonster, in quantity, and that’s pretty much just the kick from extreme caffeine amounts plus sugar. I haven’t found anything with similar ingredients to this drink beyond the beverages that contain guarana only.