HydroNOx citrulline HCl is the innovative new ingredient from the minds behind CON-CRET creatine HCl, a more bioavailable and efficient form of citrulline that, in a clinical study, showed 333% better citrulline-to-arginine conversion. While the study has yet to officially be published, many brands have already got their hands on HydroNOx and put it in a supplement, like MuscleTech and VMI, and now also Old School Labs.
Old School Labs has made use of the pump-enhancing HydroNOx citrulline HCl in a capsule format pump pre-workout, sort of like the legendary Noxygen, but with a different set of ingredients. In the Golden Era Brand’s Nitric Oxide, you get a double dose of the S7 blend at 100mg, half a gram of agmatine, a few electrolytes, and lastly, a solid 2g of the promising new HydroNOx, which is essentially equal to that of 6g of regular citrulline.
Nitric Oxide from Old School Labs is relatively short and sweet in formula, although that is to be expected with the space restrictions of capsules. However, that is the ideal environment for HydroNOx and its compact dosing, giving you plenty of pump support in a serving of five capsules. You can purchase the stimulant-free pre-workout innovation direct, where it is a bit pricey, sitting at $51.99 for a bottle of 30 full-size servings.
