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.
Really nice and soothing. I like the consistency of it and I like that it doesn't burn when I apply it. Worked quite nice, I cut myself a couple days ago so I used this and my skin has healed quite nicely.