P30 is a chemical compound known for its performance-enhancing effects on the human body. It was created from further research on the Progenitor virus.
It is known as the ultimate performance enhancer as it increases physical abilities to unnatural levels of the user such as super strength and agility, as well as makes them very easy to control, essentially making the ultimate soldier. Unfortunately, the effects of the chemical are extremely temporary as they are metabolized and expelled from the body so quickly, it would require frequent injections of the chemical to be of any long-term use. The way that was created to counter-act this drawback was to attach a device to the subject that would continuously administer the chemical in a very timely manner. Despite its effects being very brief, P30's effects were powerful and effective.
The only known subject to be injected with P30 is Jill Valentine. Taken by Wesker, Jill Valentine was implanted with a remote controlled P30 chest device. After years of frequent usage Jill Valentine served under Wesker and became the ultimate super soldier. Possessing quick agility and super strength, Jill performed various missions against her will including going against her former partner Chris Redfield in battle. After being freed from the device on her chest Jill accounts that, while she had no control over her actions, she was still aware of everything she was doing. Removal of the device left a permanent scar on Jill's chest.
- The P30 also makes an appearance in Resident Evil: Afterlife. Like Jill Valentine in the game, Claire Redfield is a subject to the drug in the movie, but later be freed by Alice from the device. In the ending scene, Jill Valentine makes an appearance with the device on her chest. It also returns in the sequel to Afterlife, Retribution.
- According to The Art of Resident Evil 5, the P30 brainwashing device was originally in the idea of being located on Jill's head, this however was changed to being located on her chest.