"Know Your Product" is a song written by Ed Kuepper and Chris Bailey of Australian rock band The Saints.

"[1] Lyrically the song was a cynical take on consumerism; in a 2004 interview, guitarist Ed Kuepper agreed that it was "like a distant cousin to '(I Can't Get No) Satisfaction'.

Referring to one of the leading mainstream DJs on BBC Radio 1, Bailey noted "Tony Blackburn didn't like it, which was the biggest compliment you could have at the time.

"[1] The B-side, "Run Down", also appeared on Eternally Yours; in place of the A-side's horns it employed harmonica to augment the band's regular guitar, bass and drum sound.

The Guardian opined that making this the opening track on Eternally Yours "confused pretty much everyone: what the hell was a brass section doing on a punk record?