If there’s no Korean stores where you live, you could purchase this tea from Amazon.
KGC Cheong Kwan Jang Korean Red Ginseng Extract Powder Tea (3 Gram x 100 Bags) https://www.amazon.com/dp/B0055PDK6Q/...

Health benefits:
https://www.healthline.com/nutrition/...

Local store:

Korea Red Ginseng Atlanta Suwanee Store (정관장 공인 매장)
1291 Old Peachtree Rd NW # 400C, Suwanee, GA 30024
(678) 6828028
https://goo.gl/maps/r8M9fGcHW2VrnTYH9