• Conditionally essential amino acid.
  • Converts into nitric oxide which expands blood vessels and improves blood flow.
  • Stimulates the release of growth hormone and insulin


I put about 5 grams in a smoothie when I feel like I need or want it. Most people use it before and/or after workouts.

Effects (my experience)

Noticeable increase in blood flow. That “pump” feeling.

Increased libido.

General good feeling, less anxious. Clear thinking, lower blood pressure.

Cost/Ease of Use

The taste is very mild, and not bad. I can taste when it is my smoothie but I have grown to like the taste (not that it ever tasted bad).

It is extremely inexpensive. I bought mine from PowderCity. 100 grams for ~$3.00

Additional Information and Pictures:




L-Arginine and Lysine can be used together to reduce anxiety.

The mixture tends to be used since a deficiency in Lysine promote anxiety[68] and normalizing a lysine deficient diet improves anxiety symptoms in humans;[69] lysine itself can act upon benzodiazepine receptors[70] and is a partial serotonin 5-HT4 receptor antagonist[71][72] (which is useful in stress-induced anxiety).