Not impressed at all by this product

I bought this product at the drugstore and it was only about $4, knowing it was an ELF producti had higher expectations. But this product was a disappointment. I only used it a few times and was never happy with my makeup.
the product does have a nice silky finish on the skin. However there are more things wrong with this product then there is right. It has glitter in the product, actually pieces of intense glimmer in the matte finish product. This gave my under eyes an unnecessary shimmer, when i wanted a normal matte under eye setting powder. The colour of the formula is a very pigmentated white which created a lot of flash back and looked unnatural on the skin.
Overall, will not use this product again because i don’t like under eye setting powders anything like this.

J'ai acheté la poudre fixante elf pour le dessous des yeux. Je pensais que ça allait cacher les cernes. Mais je ne vois pas de grands résultats après l'avoir appliqué... Au contraire, avec les paillettes qui sont présentes dans la poudre je trouve que ça met en avant les cernes. Je pense qu'il faut plus l'utiliser comme un highlighter. Et encore comme ça, ce n'est pas le meilleur produit qu'on peut trouver. Je trouve ce produit inutile et même s'il n'est pas cher, il vaut mieux économiser son argent pour s'acheter un vrai cache cerne ou une bonne poudre. Je n'achèterai plus ce produit.

I did not notice any difference with this and am not sure what it is supposed to achieve. Perhaps I did not apply it properly? Confused ... is it a hilighter? Is it supposed to hide dark circles under eyes? Or is it supposed to set your under eye concealer?