No marketing, basic packaging, and with their own laboratories, Deciem the company that makes brands like The Ordinary and NIOD, is manna for us beauty junkies. With many of their products under $15, their effectiveness seems unlikely, especially since top-of-the-line skincare can easily reach closer to the hundreds. Our curiosities piqued, we decided to test Deciem’s products for ourselves – and some came back as hard-hitters.

Head to our slideshow to see the list of our top 5 favorite products from this revolutionary beauty brand.