C4 Performance Energy, Variety Pack, 200mg Caffeine, Zero Sugar, NSF (3 Boxes, 24 Sticks)

These are great for the cost. The taste is on point. It dissolves well in water (the clumping is not an issue) and it is just as strong as the canned version. It will require a bit of shaking, as it does not stay in a perfect powdered form while in the packs. The individual packs themselves are pretty strong and it takes some force to poke a hole in it, making it ideal to throw in a go bag with random items without fear of easily being punctured. I have gone out of my way to tell friends about this product. I am very pleased with it, and purchase repeatedly.

Exactly what you'd expect from a c4 but better because if.you're not looking for the full 200mg you can ration and save. These are very useful if you work graveyard. Flavor great. Mixes well with cold water.

Product seemed stale and did not mix well in water. When I opened the packet, which itself was hard as a rock, it was full of large hard clumps which just sat in the water bottle and never dissolved. When I checked the other packets in both boxes I ordered, I discovered they all felt roc hard. Not sure if moisture seeped in somehow but quality control sure needs to pay attention to this. Basically wasted my money, will not be ordering again

Works great! Super convenient way to carry caffeine with flavor and beta-alanine and use it when you need (long runs, bike commutes, packing light for a long shift). The orange flavor is very hard packed and so it’s a little harder to get out of the packet, and takes a little extra shake, but flavor is still fine. Just bought my second set, it’s a deal compared to the cans.

I agree with others that said this product was clumpy/hard. The whole package is not powder but a clump. It takes a long time to fully dissolve it in water. Once dissolved it tasted fine. This is the Orange flavor.

This pre-workout has quickly become my go-to for every gym session. From the first scoop, I noticed a clean, sustained energy boost without the jittery feeling or crash that comes with some other formulas. It kicks in fast—about 20–30 minutes after taking it—and keeps me locked in through even the toughest workouts. The focus it gives is incredible. I feel dialed in from warm-up to cooldown, with better endurance and that extra drive to push through those last few reps. Pumps are solid too—my muscles feel fuller and more responsive, especially during high-volume sessions. Flavor is surprisingly good (I went with Blue Raspberry), and it mixes easily with no clumps or weird aftertaste. I also appreciate that it’s transparent with ingredients—no proprietary blends, so I know exactly what I’m putting in my body. If you're looking for a reliable pre-workout that delivers energy, focus, and performance without the crash, this is the one. Definitely a 5-star product in my book.

I like the taste and they work well, but every time they arrive they are hard as a rock. My guess is they are being stored in a humid environment. You'll need to smash them up before opening, then dissolve them in warm water before adding cold water. I had one arrive that felt like gel maybe because water got inside. That one went in the trash. Pic and video below. The Amazon supply chain needs some fixin'. I'm going to try another source because when I've found these at a store, they are powder and not hard and Amazing.

I love the taste of these and the ease of just opening the packet and pouring it in my water bottle. They give me the energy level I need to make it through my day and so I can stay hydrated in the Florida heat. They mix well in my water I just pour it in and shake the bottle real quick and there is no clumping. To me they are a good value for the money and I drink more than one of these a day to keep my energy up and to stay focused and it works.