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.
For a drugstore mascara and for this price.. I am shocked. This mascara is incredible and makes lashes very long and thick. Tip: Use the inner side of the arch rather than the outer side to avoid clumps.