Strong components in this professionally proven, high-intensity pre-training drink assist in boosting energy, alertness, strength, stamina, pumps, and free testosterone during exercise. Nitra flex pre-workout provides quick, effective training outcomes for a stronger body, raising testosterone, nitric oxide (no), energy, and stamina levels. It includes l-arginine, l-citrulline malate, and l-arginine alpha-ketoglutarate (akg) amino acids, which are known to develop muscle, as well as calcium fructoborate (cfb), a naturally occurring, very potent type of boron that has been demonstrated to boost free testosterone.


  • There is a high citrulline to arginine ratio.
  • Increases synthesis of testosterone.
  • Increased beta-alanine dosage.
  • There is no creatine in it.
  • Includes a number of cognitive enhancers.

How to use

Before your training session, start by combining a ½ scoop of this pre-workout powder with 180 ml of water and ingesting it. Mix one scoop with 250–300 ml of water and ingest right before working out, or when your tolerance improves, which normally happens after day 2.


Citrulline, Citrulline Malate, L-Arginine Malate, L-Arginine Alpha-ketoglutarate, Resveratrol, Pterostilbene, Beta Alanine  Caffeine, DMAE Bitartrate, N-Acetyl-L-tyrosine, Theanine, Raulwolfia Canescenes (Extract)Calcium fructopyranose borate.


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