IPhone7Plus Tik Tok version has slimming function. Open Tik Tok, click the add icon to open Tik Tok app, click the add icon at the bottom to enter the shooting interface, click props to enter the shooting interface, click "props" at the lower left, switch the decoration category to "decoration category" in the props bar, click slimming effect, find and click "slimming effect", select slimming effect, select the slimming effect you need, and shoot in front of the mirror.