Portland International Airport Duty-Free is full of local stores and cafes providing local dishes, but there are stores like NIKE and Columbia too. So the choice is wide.
Kiehl's is a small pharmacy with such essentials like lip balm, moisturizers, body lotion, hand creme, etc. Made in Oregon is another store at Portland Airport Duty-Free that sells antique-looking jewelry, socks, T-shirts, handmade soaps, and many other things.
For stressed-out passengers, Dragon Tea is there to serve. This spa is located at Concourse C and provides multiple services. At Dragon Tea, passengers can take a bath, but also buy body products.