I had a revision done 4 years ago. The skin where the scar lies is thinner than the surrounding skin.
What is the Best Option to Remove Wide Flat Horizontal Scar?
Doctor Answers 2
Scar revision with a Z-plasty
Based on your photo I would think a scar revision with a Z-plasty would improve the appearance. The scar is transverse at the area of the Marionette lines and placing the vertical part of the Z in that line would help and I believe with a good skin closure the width of the scar would be less.