fitness
Best L-Citrulline Pre-Workout Supplements 2026
The best L-citrulline pre-workout supplements deliver clinically relevant doses, transparent labels, and real results for the gym. We tested for effective citrulline amounts, clean formulas without proprietary blends, and products built for serious training—not just marketing hype.
Most L-citrulline pre-workout products on the market are underdosed or buried in blends that hide the actual serving size. That matters because timing and dosage are what make this ingredient worth your money. Research on acute performance and blood flow shows citrulline can support training output when taken around 45–60 minutes pre-lift and in amounts backed by science, including findings from a trial comparing citrulline malate and Nitrosigine for vasodilation and a placebo-controlled study in resistance-trained men using L-citrulline and citrulline malate.
Our Top Picks
Nutricost L-Citrulline Powder
Best overall$20–$30 · check price on Amazon
If you want a simple L-citrulline pre-workout you can control yourself, this is the cleanest option. It delivers straight L-citrulline without hiding the dose inside a proprietary blend—exactly what most lif...