#21: Do you show product rating based on customer reviews?
If you already collected any reviews for a product page, you should actively promote that type of social proof higher on the product page (usually it's placed near product title)
As a result, shoppers will clearly see that this product was already purchased by other customers and was highly rated.

Standard place for such element is somewhere near product title (right to it or below it)

Good example by Puravida:
They invest a lot in customer reviews and they promote overall product rating right above ATC button to make sure that the majority of users will see it when making decision about purchasing

Even better example by Casper:
They show star ratings right below product title (the most popular place for that element) and they use yellow (golden) color which is most common for that element than black (that is used on Puravida)
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