Nutrend quality, very good pre workout (I take it 10-15 minutes before training) that gives you energy. Just be careful, it needs very good mixing with a large spoon before you put it in the shaker. The sour mango flavor is a click better than the forest berries one. This is the third box I’m getting and I am absolutely satisfied.

Very good taste. It gives me that extra something! It also has a lot of caffeine, so be careful if you have evening workouts.

It is a POWERFUL nitric oxide supplement as it promises and well done to it. If you inhale the powder that emerges from the shaker before adding water, it burns your nose. Much stronger than other nitric oxides I have used. It activates in about 15 minutes after taking it, almost half the time compared to previous ones I used. It is the only one that I reduced the dosage due to intense dizziness and headache caused by the entire dose.
In training with all nitric oxides, I saw a similar difference, this one is a step above.
Due to its potency, I do not take it in every workout, but alternate with a milder brand of nitric oxide.
I would definitely buy it again, but in a different flavor because Forest Berries did not impress me.