GNC Pro Performance AMP Advanced Muscle Performance Amplified N.O. Loaded Fruit Punch

Clinically dosed — the label discloses at least as much citrulline per serving as clinical trials used. The black tick on the bar marks the trial dose.

Under clinical dose — the label is honest about the amount, but it's less than the studies used, so the studied effect may not apply.

Dose not disclosed — the label doesn't let you verify the amount at all (usually a "proprietary blend" that only prints the mixture's total weight).

You can't tell from the label. GNC Pro Performance AMP Advanced Muscle Performance Amplified N.O. Loaded Fruit Punch does not disclose a verifiable citrulline amount per serving, so there's no way to confirm it reaches the 6 g/day clinical dose.

Yes. The citrulline is inside a proprietary blend, so the label shows only the blend's total weight — not how much citrulline you actually get.

Clinically dosed, no-blend options include: NutraBio Pre Raw Unflavored (6 g); MTS Nutrition Clash Fully Loaded Pre-Workout (6 g); LMNITRIX Harambe Blood Blue Slush (6 g). All disclose at least 6 g per serving on the label.