[Question] Please recommend a cost-effective treatment method to improve dull skin tone during the summer~~~^^

I am worried because my facial skin has become noticeably dull and seems to have lost its vitality, perhaps due to the strong UV rays during the summer.

Every time I look in the mirror, I can really feel my complexion has darkened, so I'm thinking of taking this opportunity to get a dermatological procedure.

I am wondering what procedures offer good value for money in terms of time and cost, rather than those that take too long or have a long recovery period.

People around me have been recommending things like vitamin treatments and laser toning. For those of you who have actually tried them, what were the results like?

Alternatively, if there are any other cost-effective treatments suitable for office workers or busy people to get casually during the summer, please share them.

I would also like to know roughly how much I should expect to pay, and how often I need to receive treatments to maintain the effect.

If there is a treatment method you were most satisfied with for improving dull skin tone during the summer, I would be very grateful if you could wholeheartedly recommend it!