The music video for "Let It Flow" directed by Herb Ritts features water imagery throughout. Toni is shown singing while surrounded by men painted blue facing away from her, and this is interspersed with shots of the men behind and in front of screens of water flowing. Toni is also shown singing while sitting on a white float in the middle of a still body of water.
The double-A side single debuted at number seven on the Hot 100 and number two on the Hot R&B Singles chart, the issue dated June 8, 1996, becoming her highest-debuting single. It eventually topped the Hot 100 chart for a week, and the Hot R&B Singles chart for two weeks, which was her first number one single on both charts. Due to its staying power on the Hot R&B Singles chart, it was the #1 R&B Single on the 1996's Billboard year-end charts. The single sold over 1,500,000 copies in the United States and was certified Platinum by the RIAA on July 17, 1996.
Just as soon as the soundtrack was released, the song received critical acclaim, being chosen as one of the best tracks on the album by critics. Stephen Holden, the music critic of the New York Times, called it "small pop coup" and added "Braxton snaps out the words with a choked intensity, her dark, grainy contralto conveying a potent mixture of fury and sensuality."