I received this product free and complimentary from rederma, and 0.8 liter. I'm actually quite impressed with this product despite the fact that it has a mixture of good and bad ingredients for my skin type I think this product works fairly well I have no complaints my skin felt moisturized and plump and just healthy looking after using it I love how they are individual so you get the same dose in the same amount every time in these cute little pen cap size containers of the serum plus this is actually K Beauty cuz it's from a Korean company and it's beautiful packaging and pink and white it's just beautiful I really like this product and I recommend it