I use 2 capsules of this along with 1000 mg of l-arginine just before I work out at the gym. It seems be working better than 3000 mg of l- Arginine alone. A very noticeable increase in muscle mass in 6 wks. I have been working out for quite sometime and had reached a plateau before adding l-citrulline. Great buy. Will purchase again.

Will buy again. I alternate between this and their l Arginine. Results are apparent.

I take these with my thousand milligram L-Arginine tablets, they seem to have a better effect on the performance of the L-Arginine.

I've taken this 2 - 4 tablets / day now for about 6 months in conjunction with quitting smoking, other supplements. That said, it's not completely responsible for the change I've noted in that time - dropping BP from 160 / 100 down to 130 / 85 (avg), but it's obviously helped.<br />I'd recommend it as a dietary supplement, but it's not a &#34;magic bullet&#34; on its own.

Very satisfied with all products

Been taking this for about six weeks. Energy is more consistent and I feel less sluggish in the afternoons. Happy with the purchase.