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 have been using the Olay Micro- sculpting moisturiser for a while now and I like using it on my forehead, chin and the nasolabial fold or laugh lines beside my mouth. It really does soften the lines and makes them less noticeable. I was thrilled with this purchase because I got the serum as well as the moisturiser and a brand new makeup purse for less than what I would normally pay for one of them. Very happy!