Thank you for your close up photo of your hypo-pigmented burn scar.
This being said, Fractional CO2 Lasers or INFINI RF are more effective for depressed, atrophic scars like box-scar/rolling acne scars.
Hypopigmentation after burns is due to the dysregulation of melanin production after injury to melanocytes. Hence, topical treatments are also important to assist with re-pigmentation.
To get best results, multiple sessions of a combination of lasers and topical treatments are key for re-pigmentation of a hypo-pigmented burn scar.
Hope that this helps!
Warmest regards,
Dr Justin Boey