The Flash Codexery

Velocity 9

Synthetic speed that burns life force to fuel impossible velocity.

Velocity 9 is a synthetic chemical compound developed within the S.T.A.R. Labs facility during the early years of Barry Allen's career as the Flash. Created by Eobard Thawne while he was impersonating Harrison Wells, this substance was designed to grant superhuman speed to ordinary humans without requiring a connection to the Speed Force dimension itself.

Creator
Eobard Thawne (as Harrison Wells)
Affiliation
Reverse-Flash / S.T.A.R. Labs
First Appearance
Season 2 of The Flash Series
Status
Neutralized/Destroyed
Type
Synthetic Performance Enhancer
Primary Effect
Artificial Super-Speed

Lore & Background

The drug works by flooding the nervous system with energy that mimics lightning, allowing users to run at incredible speeds. Yet, this power comes from within the user's own biology rather than an external dimension. Over time, the strain causes severe cellular degradation, addiction, and mental instability. Team Flash eventually discovered the plot and worked to contain or destroy the remaining vials.

In Their Own Story

The vial hummed against the cold metal table. He knew the cost, but the silence of the room demanded a voice only speed could provide. As the needle pierced his skin, the world blurred into streaks of light and shadow. For a moment, he was godlike, tearing through walls without resistance. But then came the hunger, a hollow ache in his bones that the lightning couldn't fill. The rush faded, leaving behind the tremor of withdrawal.

Reader's Guide

Velocity 9 functions by chemically simulating a Speed Force connection, flooding the user's nervous system with synthetic energy. This allows muscles and metabolism to operate at superhuman velocities without requiring actual access to the dimension. However, this bypass comes at a severe biological cost. Unlike natural speedsters who draw sustainable power from the Speed Force itself, V9 users burn through their own life force rapidly. Consequently, prolonged use leads to cellular degradation, organ failure, or death if the dosage is not managed perfectly. The compound induces intense addiction, forcing subjects to seek repeated doses merely to maintain baseline mobility and prevent withdrawal seizures. It also bypasses the spiritual safeguards of the Speed Force, often resulting in aggression and mental instability among users. While it enables abilities like teleportation and time travel under extreme stress, these effects remain volatile compared to true speedsters who are protected by lightning auras. Usage was primarily orchestrated by Eobard Thawne during his tenure as Harrison Wells. His goal involved recruiting an army of artificial speeders to challenge Barry Allen. Team Flash eventually neutralized the formula to prevent mass casualties across Central City. Because it lacks the Speed Force's regenerative properties, users remain vulnerable to standard physical trauma that would normally be negated by a lightning aura.

Did You Know?

More in Speed Force & Tech

Elsewhere in the The Flash universe

Spotted an error? Know more?

This is a living reference — every entry is fact-audited, and reader corrections feed straight into our audit queue. Suggest an edit · See this site's audit record

Comments

Loading…
Open in the interactive codex →