The invention provides a device (900) for containing a liquid or semi-liquid cosmetic or pharmaceutical product, the device comprising: a closure (902) comprising a product withdrawing conduit; a rigid container (901) having a first means for engaging with the closure, thereby closing the container; and a cartridge (905) enclosed within the rigid container, the cartridge having a second means for engaging with the closure, thereby forming a substantially airtight seal between the cartridge and the closure; wherein the cartridge comprises a biodegradable or recyclable rigid outer (906) enclosing a collapsible liner (907), the collapsible liner defining a cavity for containing the product, wherein the product withdrawing conduit extends inside the cavity. Also related methods, products and kits.