SCP-999 appears to be a large, amorphous, gelatinous mass of translucent orange slime, weighing about 54 kg with a consistency similar to that of peanut butter. It can change shape at will. SCP-999 has been known to cure depression, anxiety and other mental issues just by its presence. SCP-999’s surface causes an immediate mild euphoria, which intensifies the longer one is exposed to SCP-999, and lasts long after separation from the creature. It’s personality is compared to that of a dog.