Fibroblasts and collagen are the main building blocks of the skin that are targeted by laser toning. As the laser energy penetrates deep into the skin, it produces a controlled thermal injury, and the fundamental structure of each building block is changed. During the treatment of depressed acne scars, the laser targets the skin’s building blocks.
The doctors might recommend the laser treatment to treat acne scars by penetrating the patient’s dermis. Once the laser energy has penetrated deep enough, it will break apart the purplish and brownish pigments that are left behind by the pimples.
Over a period of time, the skin’s building blocks regenerate and repair the acne scars. The effects from the laser will also help soften the edges of the scars. The appearance of the pigmented acne scars is diminished as the laser uses special effects to break apart the pigmented lesions.
After the procedure, your body’s immune system will start collecting the leftover particles, which will clear the discoloration much more quickly than normal.

The doctors would recommend that the patients adopt these habits to maintain an even and blemish-free skin tone:

Keep your skin hydrated.
Avoid excessive sun exposure.
Exfoliate regularly.
Add antioxidant-rich food to your diet.
Exercise.