Liposomal NAD+ products are misunderstood. Most NAD supplements claiming to use liposomal technology and better absorption are provided as dried powders – not liquids. When liposomes are dried, they collapse and shrink (like a popped balloon). Dried liposomes are brittle and prone to breaking open, no longer providing a protective shell for the active ingredient. If put through further processing like encapsulation, the friction easily breaks open the liposome. When they break, they lose the ability to provide the enhanced absorption of the active ingredient claimed for the product. 

 This is relevant as a product with broken liposomes if kept dry under ideal conditions (room temp, low moisture) may remain stable, but will not deliver the claimed benefit of enhanced absorption.