The Liquid Glitter Eyeshadow in Copper Pop by e.l.f. Cosmetics was put to the test by Alia in her video review. She applied the eyeshadow over a primer, hoping for a long-lasting effect. The color was described as subtle, but unfortunately, the glitter only remained in the creases of her eyelids, similar to her experience with the blue eyeshadow from the same range. Alia concluded that this product may not be suitable for oily skin, but it could still be used for accentuating certain looks or achieving a 60s-inspired style. Despite its limitations, she found the eyeshadow to be cute. Overall, the Liquid Glitter Eyeshadow in Copper Pop offers a subtle color option, but may not provide the desired longevity for those with oily skin.