More than a simple dispenser, the Slidissime pump allows to not contaminate all the content when you using it : you just touch & slide on the flexible pump, and your fingers are not in contact with all the content. And the airless jar system will protect the formula of the outdoor air, that makes it possible to limit the preservatives in the ingredients of the cream or lotion. Thanks to the Slidissime pump, the formula is never in contact with air, in this way the formula inside is totally protected from oxidation and contamination. Don't pump, slide !