Has anyone had experience with Korean skincare clinics offering treatments for hyperpigmentation? How did it compare to over-the-counter options?

Has anyone here had personal experience with Korean skincare clinics offering professional treatments for hyperpigmentation? I’ve been dealing with dark spots and uneven skin tone, and I’m curious to know how the treatments available at these clinics compare to more common over-the-counter products. Specifically, I’m interested in things like the types of treatments offered (e.g., laser therapy, chemical peels, etc.), the effectiveness of these treatments, the costs involved, and how they compare in terms of results to products like serums or creams. Was the treatment worth the price, and would you recommend it to others dealing with similar skin concerns?