Short verdict
Buy online. Best ordered before or after travel when convenience, delivery, or luggage space matters more.
The smartest Korea shopping habit is testing locally and reordering winners online later.
What to know
Buy in Korea for discovery, texture testing, shade comparison, and local-only small items.
What to avoid
Reorder online for products you finished, liked, and can buy from trusted global retailers.
Final verdict: use Korea as the showroom, not the warehouse.