Ornithine is an amino acid that is produced naturally in the body. It is used by the body to break down ammonia. Ammonia is a waste product that is produced when the body breaks down proteins. Ornithine is also used by the body to make carnitine, which is important for heart health.

Ornithine supplements are used by some people to boost athletic performance, improve recovery from exercise, and increase growth hormone levels. Some people also use ornithine supplements to treat fatigue, depression, and anxiety.

There are many ornithine supplements on the market, and it can be difficult to choose the right one. In this article, we will compare two of the best ornithine supplements to help you make a decision.

The two ornithine supplements we will be comparing are:

-Optimum Nutrition L-Ornithine, 500mg, 120 Capsules
-NOW Supplements, L-Ornithine, 500mg, 120 Capsules

Both of these supplements are high quality and provide 500mg of ornithine per capsule. They are also both affordably priced, costing less than $20 per bottle.

So, what are the differences between these two supplements? Let’s take a closer look.

One of the main differences between these two supplements is the form of ornithine. Optimum Nutrition L-Ornithine uses the L-form of ornithine, while NOW Supplements L-Ornithine uses the D-form. The L-form is the form of ornithine that is found naturally in the body. The D-form is a synthetic form of ornithine that is not found naturally in the body.

The L-form of ornithine is more bioavailable than the D-form, meaning that it is more easily absorbed by the body. The L-form is also more effective at increasing growth hormone levels and boosting athletic performance. For these reasons, we believe that Optimum Nutrition L-Ornithine is the better choice.

Another difference to consider is the price. Optimum Nutrition L-Ornithine is slightly more expensive than NOW Supplements L-Ornithine. However, Optimum Nutrition L-Ornithine is also more potent, meaning that you will need to take fewer capsules per day to get the same effect. When you compare the price per capsule, Optimum Nutrition L-Ornithine is actually the cheaper choice.

So, which ornithine supplement is the best? We believe that Optimum Nutrition L-Ornithine is the better choice. It is more potent and bioavailable than NOW Supplements L-Ornithine, and it is also more affordable when you compare the price per capsule.