I am planning to use jouve tightening serum, how long does the effectiveness stay? ADVERTISEMENT 296 viewsDecember 21, 2016 0 James0 December 21, 2016 0 Comments 3 Answers ActiveVotedNewestOldest 0 NatalieSmith5 Posted 0 Comments Hello James Smith, I do not know; but I do know that a healthy lifestyle has lifelong benefits. I agree with Karin and Harris. Take care, Natalie aka NAPS 2 B Fit. You are viewing 1 out of 3 answers, click here to view all answers. Register or Login