I have worked with mailing, and it worked well Potency offers about seven years ago. I think many things have changed, but it could still work.
nowadays for Nutra, I recommend Facebook, Bing, or Google YouTube Shorts—they are a good source of traffic. However, it will always depend on the type of product and the type of claoker you are using. Beyond your ad structure, it's important to have a good cloaker that doesn’t break the links and ensures everything is working properly.