NOW&ampreg; Glucosamine/MSM/Arnica Liposome Lotion is a synergistic blend of joint and skin support factors delivered via liposome technology.&ampnbsp; Liposomes are bi-layered, membranous spheres that are similar in almost every way to small cells.&ampnbsp; They can carry almost any active ingredient, and can deliver their cargo all at once or release it slowly over time.&ampnbsp; Research for the use of liposomes for topical application was pioneered by Mezei and his colleagues during the early 1980's.&ampnbsp; Recent advances in liposome delivery systems have improved the ability of these phospholipid vessels to deliver these vital nutrients through the epidermis and deeper layers of tissue.