Usually, yes — but only after a real consultation and only with a doctor's prescription. There's no over-the-counter GLP-1 here, and any clinic willing to hand you a pen without checking you over first is one to walk away from.
The practical reality is friendlier than that sounds. Plenty of Seoul weight clinics see international patients, post their prices in English, and can write the prescription the same day if a doctor judges you suitable. What you can't bank on is qualifying automatically, or stock always being on the shelf. Eligibility, supply, and the physician's read on your health all decide the outcome. So treat a yes as likely, not certain — and don't buy a plane ticket on the assumption that the prescription is just paperwork.