Lens remain in the Ligue 1 relegation zone after goals in each half from Moussa Sissoko and Andre-Pierre Gignac earned all three points for Toulouse.
Sissoko opened the scoring after 35 minutes and Gignac doubled the lead 10 minutes into the second half.
Lens had the first chance of the game after nine minutes from a Sebastien Roudet free-kick from the right which reached Abdoulrazak Boukari at the far post but his header was over the bar.
Lens threatened ag! ain when Kanga Akale's free-kick into the area was met with a header by Alaeddine Yahia who beat goalkeeper Yohann Pele to the ball but it went the wrong side of the post.
Toulouse took the lead when Paulo Machado played a good ball in from the right which found Franck Tabanou but his shot crashed against the crossbar.
The rebound fell for Sissoko who shot into the empty net to give his side the half-time advantage.
Lens struggled to create chances in the second half and Toulouse got their second goal through Gignac who beat two defenders before curling his shot into the top corner of the goal.
Toulouse went close to claiming a third when Machado's cross was met by Sissoko with a far post header which came back off the post with goalkeeper Vedran Runje beaten.
Good defensive work by Sissoko was wasted when the ball found its way to Roudet whose well-hit shot was saved by Pele.
The Toulouse keeper was again in the right place to keep! out a shot from Boukari who had beaten his marker before unle! ashing h is effort.
