L-Histidine is an amino acid which is present in proteins. It is furthermore one of only twenty amino acids located there and is considered essential for human infants. Older children and adults are able to synthesize histidine, which thereafter is deemed non-essential. Histidine is viewed as a precursor for the biosynthesis of histamine, but also of carnosine. The enzyme necessary for the synthesis of histidine into histamine is called histidine decarboxylase. Histidine transmiase is able to transfer L-Histidine into (imidazol-5-yl)pyruvate and L-glutamate. L-Histidine is deemed necessary also for the utilization and regulation of other essential trace minerals by the human body, these minerals are manganese, iron, zinc, copper and molybdenum. With help of histidine kinase, protein L-Histidine and adenosine triphosphate can be converted into adenosine diphosphate and protein N-phospho-L-histidine.

L-Isoleucine is an essential alpha-amino acid that is considered both, a ketogenic and a glucogenic amino acid. Since that L-Isoleucine is an essential amino acid, it cannot be synthesized by the body, therefore it needs to be ingested. The primary source of L-Isoleucine is as a component of proteins. It has become a prominent component of nutritional supplements, mostly with the body building and similar athletic communities, where it is believed that L-Isoleucine has the capability to increase endurance, but also to repair muscle tissue. It has been observed that L-Isoleucine ingestion allows power athletes to recover easier from very tough trainings and exhausting activities. This branched chain amino acid is one of the three main BCAA in the body, the other ones being valine and leucine.

L-Leucine is an essential amino acid that works together with isoleucine and valine, forming the three branched chain amino acids (BCAA). Leucine is easily converted by to body to glucose, helping to regulate and maintain the blood sugar level. Leucine promotes muscle recovery, muscle repair and provides the body with energy. It also helps in burning fat that are least responsive to exercise and dieting. Leucine helps in toning the body and the muscles. Leucine prevents muscle loss by breaking down and converting to glucose, this prevents the body from breaking down muscle tissues to create energy, particularly during intense workouts and heavy weight lifting.

L-Lysine- Lysine is an essential alpha amino acid that needs to be ingested and cannot be synthesized by the human body. Sources of L-Lysine include meat, particularly red meat, lamb, poultry and pork, but also cheeses, like parmesan, some fish like cod and sardines and eggs. Several plants are rich in L-Lysine, soybean, lentil, spinach and buckwheat, but also buffalo gourd, watercress, locust bean and many other bean variants, including the common bean. L-Lysine is deemed vital for the overall production of protein, as a structural building block. It seems that L-Lysine also plays a prominent part in the absorption of calcium. Further properties include playing a role in the production of enzymes, hormones and antibodies, but also in the recovery from sports injuries and surgeries.

L-Methionine- One of the most significant amino acids there is for the breaking down of fats. It is water-soluble and is known for deactivating free radicals. Recognized as being a leading antioxidant.

L-Phenylalanine is a vital amino acid. It acts as a building block for various proteins produced in the body. It is found in most foods that contain protein, like poultry, beef, pork, milk, fish, yogurt, cheese, eggs, soy products, and certain nuts and seeds. It can assist in decreasing chronic pain linked with different health conditions by inducing nerve pathways in the brain which control pain. It can also help improve rigidity and is beneficial in conditions like walking disabilities, depression associated with Parkinson’s disease, and speech difficulties. Combination of L-Phenylalanine with ultraviolet radiation for people having vitiligo, a condition that is characterized by irregular depigmentation or white patches of skin, can lead to some darkening or repigmentation of whitened areas, especially on the face.

L-Threonine is an amino acid that is essential to the body, but must be obtained from various sources, as it is not produced by the body. L-Threonine is a well known amino detoxifying agent which works in the liver, preventing the build up of fat. It assists in metabolism and helps the intestinal and digestive tracts to function with absolute ease. L-Threonine also helps in the formation of enamel, elastin, collagen and muscle tissue. Foods rich in Threonine are leafy vegetables, poultry and pork, but it can be obtained from various pulses, whole grains, nuts and fruits like peaches and pairs. Commonly used in the relief of stress and anxiety, L-Threonine helps the consumer to have a completely healthy mental and physical style of living.

L-Valine- L-Valine is one the three Branched Chain Amino Acids (BCAAs). The other two BCAAs are L-isoleuine and L-leucine. L-Valine is required by the body for the proper function of the nervous system and the brain. L-Valine is not processed by the liver; instead, it goes directly to the muscles. It helps enhance muscle growth and help it to recover faster after an intense workout. It also helps in muscle tissue repair and maintains the proper amount of nitrogen in the body. It can also be used as an energy source that gives energy and strength to the muscles. L-Valine has other benefits; it is also helpful in liver regeneration, improvement of insomnia and nervousness, and is an effective appetite suppressant.