Perricone MD offers their Cold Plasma Deluxe .25-oz. Sample Tube for free. Better yet, select USPS First Class Mail at checkout and pay only $4.50 for shipping (regularly $7.50), or spend $75 and get free shipping with your order. That beats our mention from a month ago by $.49 and is the lowest total price we could find by $20. (Most merchants charge $90 or more for a 1/2 ounce.) This product helps prevents wrinkles, enlarged pores, discoloration and more signs of aging. There is no sales tax (except CA, CO, FL, NY, TX, WA). Note that there is a limit of one per customer. Need more than this? Use code SWAG20 and get 20% off your order.