Mechanism of Action
Ultra-short laser pulses are selectively absorbed by melanin, fragmenting pigment particles via a photoacoustic effect without overheating surrounding tissue; the immune system then clears these fragments over several weeks. The 1064 nm wavelength penetrates deeply into the dermis with minimal absorption by hemoglobin and surface melanin, making it ideal for deep pigment and darker skin tones; the 532 nm wavelength works more superficially with high melanin absorption, targeting epidermal brown spots and freckles.
How Does Laser Toning Differ from Targeted Spot Treatment?
Laser toning uses low fluence and a large spot size across the entire treatment area over multiple sessions (typically 6–10 sessions spaced 2–4 weeks apart) to lighten diffuse pigmentation such as melasma and post-inflammatory dark marks—aiming for gradual skin brightening without crusting or scabbing. Targeted spot treatment delivers higher fluence directly onto individual freckles or sun spots; the spots darken, form crusts, and slough off within 5–10 days, typically requiring 1–3 sessions. Using spot treatment settings on melasma can trigger severe rebound hyperpigmentation.
Indications
Epidermal and mixed melasma (combined with topical treatments and sun protection), persistent deep post-acne erythema and hyperpigmentation, freckles, solar lentigines, uneven skin tone, enlarged pores, oily skin support, and mild erythema reduction. Not all pigmentary disorders respond to this treatment: congenital nevi, tattoos, and certain severe forms of post-inflammatory hyperpigmentation require dedicated, independent evaluation.
Potential Risks to Know
Guttate hypopigmentation (mottled white spots) from overly frequent sessions or excessive fluence—which is difficult to reverse; melasma rebound or worsening when incorrect parameters are used; temporary post-inflammatory hyperpigmentation; and transient mild urticaria lasting a few hours. This is why laser toning must be performed by a dermatologist who examines the skin, classifies the condition, adjusts the parameters accordingly, and tracks progress with standardized clinical photography after every session.
At BonBoz
Our dermatologists examine your skin using a Wood's lamp to differentiate between epidermal and dermal melasma, distinguish freckles from sun spots, prescribe accompanying topical treatments and sun protection, customize parameters for each facial zone, and monitor progress through standardized photos. Dermatologists perform the procedure directly; treatment plans are promptly paused or adjusted if the skin does not respond as expected.
