To calculate the overall star rating and percentage breakdown by star, we do not use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
I've been using the Korean-made version of this product for years for my sensitive skin. I decided to buy it from Amazon which offered a much better price. I was thinking that products made in North America should be of good quality right? But after one use, my skin started to itch. The product also has a strange smell. Decided to stop using and will go back to the Korean-made product. Giving 3 stars because it is a good product with a history of good results for me, but I have serious doubt about the authenticity and/or integrity of the ones sold here.