SIZE MATTERS WHEN IT COMES TO THE COST PER OUNCE FOR LUXURY BRAND ANTI-AGING POTIONS!! Be careful to check the size before hitting that "BUY NOW" button! Some of the other listings posted on this Site have the size as OS but when you look at actual pics....... not OS! Specifically for the Cold Plasma Plus Intensive Hydrating Complex line that starts at sample size of .07 ounces with Direct from Perricone MD cost of $7.00 with price increasing thru the other offered sizes of .25 oz, .50 oz, 1 oz, to the fill sized that is $185!!! This item does not have the original box but is brand new and factory sealed!