Here’s what consumers have asked with answers from Tryproducts staff and previous consumers.
No, you can just join on their site (https://tryproducts.com/) and check daily for "today's product". They ask that you check out the product before you click the "Apply to try" button, and there is a "View Product" button that takes you to the product website, where you can find more info about the product. What having a Facebook account does is provide you with an additional chance to be selected to try a product, because the products on the website are also featured in Facebook posts, and some people who reply to those posts are selected to try the product also. I've been selected to try 3 products so far, and received my first one today.
They are completely legit and never ask for any money. It's all completely free.
TryProducts.com This is the main website and you answer some questions daily if you want. At the end, you can go to the different site links like Facebook, and see what they have posted and you can answer them there too.