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.
I wanted to try on my face and on my body and this comes with all different sizes for all your needs. I use the 1.5m on my tummy to hopefully improve my skin after kids and will use the .25 on my face to start. Was surprised on the quality for the price.