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.
My baby was extremely allergic to this. Even though I throughly researched about the product, I advise you to do a skin patch test before you use it. I thought my baby would be ok due to the overwhelming glowing reviews, unfortunately his baby acne flared up quite bad and his face was quite red! So terrible.