Levomefolinic acid is a natural active form of folic acid used at the cellular level for DNA reproduction the cysteine cycle and the regulation of homocysteine among other functions.?

N-Acetylputrescine is a polyamine commonly occurring excreted in normal human urine.

Tuftsin is a tetrapeptide (Thr-Lys-Pro-Arg) that specifically binds monocytes, macrophages, and polymorphonuclear leukocytes and potentiates their natural killer activity against tumors and pathogens.