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.
In spite of having an oily skin was a bit hesitant to use the product in the beginning. After using the product for a few days , the face looked more brightened and clear. liked the product will definitely recommend.