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.
This is an amazing product to try. However it depends on the skin type. I have oily skin and I get lot of pimples due to my hormonal imbalance situation but it worked well. Though it makes the skin a bit dry (it's already written on the pack) but it's good for the skin. Must use a good moisturizer after the pack.