If you've been spending $80, $100, even more on a dark spot cream that still let the spot come back — here's the first thing you should know: you were never paying for better results. You were paying for a fancier bottle.
Most Western "luxury" brightening products charge for the name, the packaging, the counter it sits on — not for what's actually inside. Meanwhile the fix was never complicated or expensive. Korea solved dark spots years ago, with two simple steps and a fraction of the price: a serum that brightens, a cream that seals.
You didn't fail at this. You just overpaid for the wrong half of the answer. Here's the version Korean women already knew about.