Elevate your workouts with Citrulline by Rule 1 Proteins, a foundational amino acid essential for nitric oxide synthesis. Designed for serious lifters, this pure l-citrulline powder enhances training endurance and delivers the muscle pumps you crave.

Key Benefits:

• Supports Muscle Pumps: Boosts nitric oxide production to improve vascularity and muscle fullness.
• Endurance Enhancement: Sustains energy and performance during intense training sessions.
• Pure Formula: Made with 100% pure l-citrulline, free from flavours, sweeteners, and fillers.
• Customisable and Stackable: Mixes effortlessly with protein shakes, pre-workouts, or other supplements.
• Unflavoured Convenience: Integrates seamlessly into any beverage without altering taste.

Citrulline is part of the Foundation Series, a versatile line of supplements that stand alone or stack effortlessly with others. Its unflavoured formula ensures compatibility with any regimen, helping you customise and optimise your stack for peak performance.

When should I take citrulline?
Consume 20–30 minutes before your workout, either on its own or mixed with a pre-workout supplement, for optimal results.

Can I mix citrulline with other products?
Yes! Citrulline is unflavoured and blends easily with protein shakes, pre-workouts, or other beverages to complement your routine.

Maximise your training sessions with Citrulline. It’s the ultimate choice for boosting endurance, muscle pumps, and overall performance. Perfect for dedicated lifters looking to reach their goals faster.