Dear Betty, I've dealing with dark circles and under eyes bags for a long time.
And although this is a good product (considering the price) it just minimize the tire eye look, by a soft coverage and smoothing the skin.
For best results in addition, have a good sleep, low salt meal ( for water retencion) and dink a lot of water.
I like too use it for daily day time makeup. Because you don't look over done. And is so easy too spread all over without mistreat your delicate skin.
Remember that the bag under the eyes are the result of fat accumulation and loss of skin firmness.