Yes. Preventing spam is critical to maintaining the integrity of your Magento 2 product reviews. Here are the most effective methods:

• Require Login to Review - Only allow registered customers who have purchased the product to submit reviews.
• Enable Admin Moderation - Keep all reviews in Pending status until manually approved.
• Use CAPTCHA Verification - Add CAPTCHA on the review submission form to block bots.
• Set Purchase Verification - Restrict reviews to verified buyers only.

The Magento 2 Advanced Product Reviews & Ratings Extension by Magedelight includes built-in spam prevention and moderation features, giving you complete control over which reviews appear on your storefront — keeping your review section credible and conversion-friendly.