Trying one of our generous samples will give you enough product to test each shade, feel and texture, and test for any sensitivity issues you may have. You will discover that Sterling Minerals Cosmetics products will not cause you to break out or irritate sensitive skin. The results will be surprising. Sample sizes will typically give you enough product to last up to 7 days depending on your application technique and type of sample purchased. All samples are shipped via USPS. Also to prevent mess or accidental spillage of your precious minerals we have packaged our powders in acrylic jars with a sealed sifter for mess free usage. Enjoy!