GAT Sport Nitraflex is marketed as a high-intensity, "seething intensity" pre-workout designed to maximize energy, focus, and physical performance. Its unique selling point is the dual-action formula that targets both immediate "hyperemia" (muscle pumps) and longer-term testosterone support.

• Reactive Hyperemia (The "Pump"): This refers to the increased muscle blood flow that occurs during high-intensity exercise. The formula uses Nitrosigine® (Bonded Arginine Silicate) and a high ratio of L-Citrulline to boost nitric oxide levels for up to 6 hours, resulting in significantly enhanced vascularity and muscle volume.
• Testosterone Support: The formula includes 200mg of Boron Citrate (or Calcium Fructoborate/CFB), a trace mineral clinically studied to support healthy free testosterone levels. Some studies cited by GAT claim a potential increase in free testosterone by up to 29.5% within 3 hours of a single dose.
• Explosive Energy & Focus: Each scoop contains 325mg of Caffeine Anhydrous to deliver intense energy. This is paired with cognitive enhancers like L-Tyrosine, DMAE, and L-Theanine to maintain mental clarity and alertness without a typical stimulant crash.
• Muscular Endurance: A potent dose of Beta-Alanine is included to buffer lactic acid, helping athletes push through more repetitions and time under tension.
• Product Characteristics
  • Creatine-Free: To avoid water retention and bloating, the formula is 100% creatine-free, making it ideal for athletes seeking a "dry" and hard muscular look.
  • Single-Scoop Potency: Due to its high concentration, only one scoop per 24 hours is recommended. Users are advised to start with 1/2 scoop to assess tolerance to the high stimulant levels.
  • Dye-Free: Modern versions of the "Advanced" formula have removed artificial dyes. 
  • Usage Safety
    • Timing: Should be consumed within 30 minutes before training.
    • Restrictions: Do not take within five hours of bedtime due to high caffeine content. It is intended for healthy adults over 18 and is not recommended for those with heart or blood pressure conditions