How to get started for virtual try on using ARFoundation?

I would like to do project based on virtual try on like glasses,jewelry and dress.For glasses and jewelry can we do it using face tracking and for fingers(no idea)? For neck we can place below where our mouth is detected like that can we do such projects with ARFoundation or we need OpenCV and additional plugins to do it?

 

For everything about the face you can use ARFoudation but it will only work on iOS.
For the hand, you should use OpenCV.

 

Face detection for IOS using ARFoundation is for iphone X and above... right?
I want to create this for IOS and android versions.With OpenCV plugin for unity support this function?Seen some videos using SPARK AR but can be shared with instagram and facebook or need their app to support this?

 

Look at this, if you did not do before. https://assetstore.unity.com/packages/tools/integration/opencv-for-unity-21088

There is an example app you can install on your devices.