It’s a simple concept, really: a brand would obviously rather you purchase multiple items from their line instead of just one, so they sweeten the deal and throw in an extra something (or things) for a slightly higher price, often in fancier packaging. For us consumers, these kits make a very attractive proposition. Discovery sets allow you to sample new products without having to commit to the full size, while bundles take a lot of stress out of the equation since you can simply use every product as you’re told (very handy for those of us who struggle to nail down a skincare routine). Did we mention they also make fantastic gifts?