Restrict product access

I want to be able to only show certain specific products in my Woo store when the product link is accessed from my main site. That is, if the user copies the link to the product to direct access it later, it will not be found – since the request came from a user and not the main site.

One thing I thought of is password protecting the product and somehow passing the password in the referring link.

Is there any way to do this or something like this?