Comparison guide
L-citrulline or citrulline malate?
Citrulline malate is typically a 2:1 blend, so a 6 g label supplies only about 4 g of actual citrulline. Both carry the same small but real effects on repetitions and soreness; what differs is how much citrulline you get per gram and whether the malate plays a part.
The options, compared
| Option | Evidence | Best for | The honest note | |
|---|---|---|---|---|
| L-Citrulline | Moderate evidence | Most people | Clean dosing: 3–6 g a day in blood-pressure and vascular trials, and doses up to 15 g rarely upset the stomach. It raises plasma arginine more effectively than arginine itself. | View |
| Citrulline Malate | Moderate evidence | Matching the pre-workout trials | The form used in most performance trials, at 6–8 g taken 40–60 minutes before training, for roughly one extra repetition per set. Many pre-workouts contain less than that dose. | View |
Our verdict
Plain L-citrulline at around 6 g is the cleaner choice. Citrulline malate at 8 g delivers roughly the same citrulline plus malate, so check the ratio on the label and whether the dose matches the trials. With either form, do not combine with nitrates or PDE5 inhibitors such as sildenafil without medical advice.