Huge Supplements Pump Serum, Stim Free Pre Workout and Nitric Oxide Booster to Enhance Focus, Pumps, Fulness with No Caffeine, L-Citrulline, GlycerPump, L-Tyrosine, Nitrosigine (Cherry Blast)

My husband train in the evenings and needed something without caffeine, and this delivered exactly what he hoped for.

Can't give it less than on star. This product is trash and a waste of money. Nothing more than a glorified electrolyte pack and let's not forget the awful taste. To be clear I tried it in the morning and afternoon on an empty stomach and with food I can definitely advise anyone just get a cup of coffee instead

This pump serum really delivers! I've been getting incredible pumps during my workouts, and my muscles feel fuller. It's a great addition to my supplement stack for maximizing my results.

Great pump pre formula. Got the strawberry mojito. Taste like dirt, or crayon paper maybe. Actually tastes like any of the flavored greens powders out there.

This mixes really well and tastes better than expected. My husband noticed better hydration and muscle fullness, especially during longer workouts.

Get an awesome pump but miss the boost from the stimulants. Like I said, works as advertised!

I decided to try this pre-workout because of the ingredients and dosages of the various ingredients. I’ve used other pre-workouts and I’m always willing to try something new. When I opened the container it’s filled with a lot of clumps, but that’s by no means a deal breaker. I’ve used it now for 5 days; it mixes okay, the taste is not great, and as mentioned in other reviews “it’s chalky” and by far one of the worst tasting pre-workouts. As for its efficacy, I didn’t notice better pumps, I went from 1 to 2 scoops and still not much of a pump. But with 2 scoops definitely noticed a less than pleasant feeling in my stomach. Some people may find Pump Serum suitable, as for myself I’ll stick with Pre-Kaged, Pre JYM, Transparent Labs and Legion Pulse.

My husband needed something that wouldn’t mess with his sleep but still deliver in the gym. This did exactly that.