What are the skin concerns for which Pico Toning is highly satisfactory?

I am writing to inquire about the types of skin concerns for which Pico Toning yields high satisfaction. My melasma is not very dark, but I have light pigmentation around my cheeks and cheekbones, and overall, my skin looks dull and tired.

I tried using whitening and vitamin products for home care, but I didn't feel much of a difference, so I started looking into Pico Toning.

I'm curious if those who are highly satisfied with Pico Toning mainly have dark blemishes or melasma, or if the results are satisfactory even for those like me who are concerned about light pigmentation and uneven skin tone. Is Pico Toning a procedure where you should compare changes after a certain number of sessions, rather than judging it immediately after just one?

My skin tends to be sensitive, so I'm worried about accumulated irritation. I would also like to know if the number of Pico Toning sessions and intensity can be adjusted to suit my skin's reaction. I would appreciate a consultation on what kind of changes I can realistically expect. If anyone has experience with this, please help me out!