Relacore receives mixed reviews on Amazon.com; favorable reviews note that it successfully reduces belly fat, and negative reviews state that it creates unwanted side effects. As of 2015, 47 percent of reviewers rate the product above four stars, and 45 percent rate it below two stars out of five.
Other positive reviews on Amazon.com rave that Relacore helps to lower stress levels, reduces waist size and improves sleep quality. One Relacore user notes that if increased cortisol levels cause the resulting belly fat, then Relacore results in success because the product successfully lowers stress hormone levels. Unhappy buyers point out that it causes acne and hair loss, hunger, contains too much caffeine and does not work.