I would suggest sticking it in the freezer (mild chill so it won't freeze to ice), or in the fridge. Keep it in a sealed, tight container like a tupperware and then wrap it in more plastic. The sooner you use that urine, the better the results of your urine or the other person's urine. Source(s):
Regulus (also known as Alpha Leonis) is a trinary star system at coordinates 3.99S 2.81E in Federation space, known as the Regulan system. Regulus is visible from Earth in the constellation of Leo. The system's three stars include Ra and UFC-113, and are the location of at least thirteen planets.
Lineage and Early Life. According to Roman mythology, Romulus and Remus were the twin sons of a woman named Rhea Silvia and Mars, the god of war. Originally from a mythical land called Alba Longa, said to be located southeast of what would become Rome, Rhea was the daughter of King Numitor.