Lamberts® L-Ornithine is presented in its free-form for maximum absorption. Each capsule provides a full 500mg of L-Ornithine and are manufactured in the UK to pharmaceutical GMP standards. Amino acids are used by the body to build proteins. Proteins are essential for the formation of cells and are also involved in the biochemical structure of hormones, enzymes, neurotransmitters and antibodies. Daily intake: 1 to 3 capsules