What is the most effective treatment to cleanly remove unsightly acne marks and pigmentation that remain even after adulthood?

The red and dark marks left behind by acne from my school days do not disappear as easily as they used to because my skin's regenerative capacity has declined with age, causing me great distress every time I look in the mirror. I neglected them thinking they were just minor skin issues, but the pigmentation seems to be getting darker over time. Even when I try to cover them with makeup, my overall skin tone looks dull, so I am now planning to seek professional treatment.

I am wondering if a vascular laser that reduces redness would be better among the procedures performed at a dermatology clinic, or if toning treatments that brighten the overall complexion or lasers for removing blemishes are more suitable for adult acne scars like mine. If anyone has received laser treatments or skin boosters for similar concerns and has actually seen significant improvement in pigmentation, I would like to hear your advice.

I would appreciate it if you could share the recovery period for returning to daily life after the procedure, as well as any helpful aftercare tips to soothe sensitive skin and maximize the results. We are looking forward to hearing not only professional answers but also firsthand reviews from those who have actually received the treatment, so please share your insights.