What is the Revelio spell?

Everything you need to know about the Revelio spell

‘Revelio’ is a revealing Charm, which has several variations and applications. When ‘Revelio’ is used directly on a person, it removes magical disguises. ‘Specialis revelio’ reveals spells performed on objects or potions, while ‘Homenum revelio’ alerts the caster to any other human presence in the vicinity.