Amazon calculates a product’s star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers, and factors that establish reviewer trustworthiness.
When I ordered this I thought I was getting 6 bottles for $29.00. I was shocked when only one arrived. In the store they are around $5.99. This is the worst deal I have ever gotten shopping on-line. I would have returned it but I opened it expecting the other five bottles would arrive with the rest of my remaining order.