I love this stuff! I have high blood pressure so I was weary about buying this but OMG it's awesome! No crash and I feel great all day. Sam's please start carrying other flavors!!!!

The taste is so strong and artificial. Why do they need to add so much coloring to something that doesn't need it? I'm going to try and return my unused portion and I'll stick with liquid IV.

Great product and so glad Sams club carries it in my local Sams Club. First tried in Texas several years ago and always grabbed 3 boxes to bring back to Iowa. Highly recommend. Use it prior to my workouts to get the extra boost.

This is my new preferred energy supplement. Bleep fiz always made me feel sick soon after drinking. With 4D there is no increase in HR or BP. Just a clean drink additive with a punch of energy needed to finish the day. Great flavor too, no bad after taste.

tried at Sam's Club bought a box ...I work at a cleaners sooo hot I usually would drink 2 Gatorades plus at least 4 to six water to stay hydrated When I drank drank a bottle water mixed with the 4D Clean Energy. WOW WHAT A DIFFERENCE..I only drank 2 more waters and felt great and even Cooler....I'll b buying more .

I tested this in the store and it was delicious. Some kind of orange flavor and bubbly. I purchased a box from the sales rep who I think receives some kind of commission, I don't know. The next morning I prepared with a bottle of water and added extra water and drank half when I just about wanted to throw up. I was nauseated for hours. First it was tropical punch and not bubbly like the sales rep gave. I can't wait to return to Sams

I bought this today.. Had it at noon, it's 3am, I'm still up. Energy drinks do not have this effect on me. I've been burping, urinating, and hot! I am just trying to get to sleep!! This is strange... Coffee or green tea doesn't have this effect on me. I'll have to ask my doctor why he thinks this occurred... Drink at your own risk.

A great product! Great taste, great energy boost. Very convenient to take on the go. I workout everyday, sometimes twice a day, 4D give me the energy to power through my workouts. Definitely recommend this for anyone that needs a little help to sustain your energy level throughout the day and throughout your workouts.

It definitely gives you an energy boost that lasts all day. Negatives are that it doesn't dissolve well and the sweetener used is overpowering in 16 oz. of water. It was tolerable in 24 oz. but has that same weird taste most energy drinks have. I drank it before doing several hours of yard work and my pulse rate stayed over 100 for hours after finishing so I wouldn't recommend it for people with heart or blood pressure issues. I didn't notice any increase in "mind clarity".

Getting harder to find, but the best I’ve used. Hope they keep it around.