Overproof is the first full length album by the American hip hop duo Substance Abuse. The Los Angeles based group have garnered much acclaim following the release of the album, particularly for its incorporation of legendary MC Kool Keith and the ever present MF Doom on the songs 'Night On The Town' and 'Profitless Thoughts' respectively. The album received four stars in Urb and Scratch Magazine.

Track listing

1. "Fake Contacts" – 2:52
2. "Night On The Town" (Featuring Kool Keith) – 4:31
3. "Profitless Thoughts" (Featuring MF Doom) – 3:29
4. "Mercy Killings" – 4:44
5. "No Guarantees" – 5:42
6. "Myka Nyne Interlude" – 0:29
7. "Everyone's a Critic" (Featuring Rasco) – 4:24
8. "The Graduate" – 4:32
9. "The Sickness" – 3:54
10. "Check" (Featuring Motion Man) – 5:28
11. "Withdrawals, Pt. 2" – 3:23
12. "Can't Call It" – 5:30
13. "I Don't Mean to Talk Shit" – 2:03
14. "Collateral Damage" (Featuring KutMasta Kurt) – 3:21
15. "Fractured Form" – 4:30
16. "Sickness (Remix)" [Featuring Saafir] – 3:09