: You can include cards in your packaging that ask for a review, but they must not offer incentives (like a gift card or free product) in exchange for a positive rating.
: Inside Amazon Seller Central, you can manually trigger a standardized review request email for every order within 4 to 30 days of delivery. buy amazon product reviews
Instead of "buying" reviews, sellers use legitimate, Amazon-approved methods to build social proof. If you are looking for ways to get reviews properly, here is what is recommended: Legitimate Ways to Get Reviews : You can include cards in your packaging