I now use loose powders for my eye area because I find them easier to apply with my makeup brush. However, loose under-eye powders help you achieve a blurry effect. So, if you're into that, you should buy loose powder. On the other hand, compact under-eye powders are highly pigmented and easier to use. If you have an oily complexion, you should opt for oil-free powders, whereas those with dry skin should choose compact powders enriched with hydrating ingredients. Another main difference is their formulas: compact powders contain talk, while loose powders contain silica. Both compact and loose powders are helpful, and they each come with their own perks. They're both setting powders.