Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
Great product. Does its job. My only complaint is the packaging. Even though I always use clean hands I don’t like dipping my fingers in the cream. I would prefer an airless pump. Still gets 5 stars though as it’s a good product for a good price.