"And plasma only occurs on the spiritual plane."
Piper Halliwell.[src]

Ectoplasm, also referred to as Plasma, is a substance or spiritual energy field that surrounds spirits when appearing in the physical plane. Although mostly associated with spirits, certain demons also use ectoplasm and some spirits can create offensive Plasma Balls with it. Ectoplasm only appears on the Spiritual Plane.


When Phoebe and Prue were helping Andy Trudeau investigate several murders linked to a ghost, he brought them a letter opener that had a fingerprint that only showed up under ultraviolet light. They informed him that ultraviolet fingerprints are what ghosts leave behind.[1]

The demon Troxa was said to have ectoplasmic biochemistry when using his power of Invisibility, which could be made visible with cold temperatures.[2]

Scavenger Demons are covered in green ectoplasm, possible because they feed on the remains of vanquished demons. They also have the power to fire strings of ectoplasm.[3]

The spirit of Olivia Callaway could form spheres of ectoplasmic energy, known as Plasma Balls. Piper Halliwell used a potion to detect ectoplasmic residue on Paige Matthews's shirt after she got hit by a plasma ball. Olivia was the only spirit who was shown able to conjure plasma balls, possibly due to possessing the ability to throw Energy Balls when she was alive.[4]



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