This really depends but most importantly, we do not use shrink wrap as it goes against our ethos of being plastic-free where possible.
Most of our bath bombs are packaged in tissue paper unless their design calls for clear packaging, in which case we have biodegradable cellophane bags.
Our soaps are wrapped in a paper strip and, where need be, in tissue paper.
Hand balms are in cute little tins!
For safety and out of necessity our bath salts and whipped soaps come in recyclable PET plastic containers.