Looking for citrulline malate 2:1?
The 1:1 Citrulline Malate Ratio
This ratio is one part L-citruline to one part DL-malate. Most pre-workout formulas also use a 1:1 ratio, although some pre-workout enthusiasts prefer a 2:1 ratio of citrulline to malate. The primary different between a 1:1 and a 2:1 ratio is the effective dosages.
1:1 citrulline malate is effective at around 10 grams. The 2:1 ratio version is effective at around 5 grams.