8 sample-sized bags of different coloured neon powders. These retro-looking powders are all safe to use in soap making and all safe to use in general cosmetics. We recommend using these neon powders in soaps because their vibrant colours remain vibrant in soapmaking! Physical Form: Bright Neon Powders Country of Origin: China Storage: Room temperature. Airtight container. Best Used By: One year from date of purchase. Shelf Life Once Used in Manufacturing: One year from manufacturing date.