Methionine is an non-polar, aliphatic, essential α-amino acid that is used in the biosynthesis of proteins. High levels of methionine can be found in eggs, sesame seeds, Brazil nuts, fish, meats and some other plant seeds; methionine is also found in cereal grains. Most fruits and vegetables contain very little of it. Most legumes are also low in methionine. However, it is the combination of methionine and cystine which is considered for completeness of a protein. There is scientific evidence that restricting methionine consumption can increase lifespans in some animals. However, since methionine is an essential amino acid, it cannot be entirely removed from animals' diets without disease or death occurring over time. For example, rats fed a diet without methionine developed steatohepatitis (fatty liver), anemia and lost two thirds of their body weight over 5 weeks. Administration of methionine ameliorated the pathological consequences of methionine deprivation.

Glutamic acid is a non-essential aminoacid used in biosynthesis of proteins. Besides being a building block of proteins, glutamic acid plays a principal role in neural activation. Glutamate is also responsible for the umami (savory) flavor of certain foods. In medicine, glutamate is used as a metabolic supplemnet in patients undergoing coronary surgery.

Disodium aspartate is used in organic biosynthesis.

BETANAPHTHOL (or 2-Naphthol) is used as a preservative. It is known, that this compound can cause dermatitis.

Glycyrrhizic Acid is specific compound isolated from licorice plants. Ammonium Glycyrrhizate (also known as GLYCYRRHIZIN, AMMONIATED) is a salt, was investigated to be a safe and is used as ingredient in the formulation of makeup, fragrance, hair care, skin care, shaving, personal hygiene and suntan products.