Where can we get a step down transformer for Korea to use a US hair dryer & curler?

If you are in Korea, any small electronic store will carry a transformer - they cost about $20

Where can we get a step down transformer for Korea to use a US hair dryer %26amp; curler?

many of the luggage stores carry a kit that you can get several adapters and a transformer.

I would even check Walmart/K Mart and Target stores too.

I brought a con-air curling iron that has dual voltage where it automatically adjusts and never had a problem using it in Europe

Where can we get a step down transformer for Korea to use a US hair dryer %26amp; curler?

If you are still in the USA, you can get one at Radio Shack for about $30 or less...