Hi Eroc,
Yep, this is a super common issue for SEOs. My company's site has reviews load in JavaScript, and Google even crawls and indexes those as if they're separate pages.
Google wants to read everything it can, so you've got to figure out the cost/benefit of this situation. If you really do have all of the product information, I'd guess that visitors entering through page 2 of reviews wouldn't be the worst thing, especially since Google would probably choose the page with the reviews most relevant to the query.
The main issue from my perspective is wasting Google's crawl budget on your extra review pages. If that's an issue that will significantly help your site (likely if you have a lot of products), you'll want to noindex those reviews like Ikea. There's no other method that will stop Google from wasting it's crawl budget.
Hope this helps!
Kristina