Our Face AR SDK provides an API for beauty and makeup cases.
Skin smoothing / softening is currently the primary option for blemish and freckle removal.
To use it, make sure to use the makeup effect at the top of the page, and either modify the bottom of its config.js to manually set Skin.softening(n) to your desirable intensity between 0 to 1 (possible to use float). You CAN exceed this number, but it can produce artifacts
Or do a call to the .js function from your app according to the documentation