Post-laser hyperpigmentation occurs because melanocyte activity is stronger in Asian/yellow-skinned individuals than in Caucasians, making post-inflammatory melanin deposition and proliferation more likely. Studies indicate a post-laser hyperpigmentation rate exceeding 10% in yellow-skinned individuals. Patient constitution also plays a role, including hormonal influences that activate melanin production.
Other causes of post-laser hyperpigmentation include improper energy settings during laser treatment, using an unsuitable laser device for the patient's skin type, medication interactions, inadequate sun protection post-treatment, or excessive consumption of lemon, lime, or spicy foods after the procedure.
Laser spot removal practitioners should disclose specific details
Both laser spot removal and intense pulsed light (IPL) treatments involve thermal energy that may cause some degree of skin inflammation during the procedure. To prevent post-treatment hyperpigmentation disputes, practitioners should thoroughly inform patients beforehand, provide detailed precautions, obtain signed consent forms, and carefully select laser or light therapy devices suitable for each patient.Additionally, a test spot treatment on a few pigmentation areas can be performed pre-operatively to observe any hyperpigmentation reaction. If present, treatment should include a combination of oral and topical medications. Oral options include tranexamic acid, vitamin C, and alpha-lipoic acid injections. Topical treatments encompass hydroquinone, retinoic acid, and arbutin.
For those preferring to avoid oral or topical medications, multiple sessions of the 1064nm long-wavelength skin-clearing laser can be used for gradual improvement. This laser penetrates deep into the dermis to break down melanin. Some practitioners also employ fractional laser therapy to address post-laser hyperpigmentation, or even adjust the wavelength of intense pulsed light (IPL) for treatment.If no post-treatment hyperpigmentation occurs after a test session, the laser can be applied in staged sessions tailored to individual needs, achieving the desired satisfactory results.
Due to skin characteristics, Asians typically have mixed-depth spots. Laser treatment should therefore address superficial pigmentation (such as age spots,freckles, sunspots, café-au-lait spots, etc., while deeper pigmentation like Nevus of Ota, Nevus of Becker, and malar nevus require specialized assessment. Dermatologists can accurately determine the depth of pigmentation to select the appropriate medication or laser (light) therapy, ensuring optimal results.
Post-laser hyperpigmentation is difficult to absolutely guarantee against or prevent. Therefore, thorough pre-treatment assessment and diagnosis, along with effective communication with the patient, are crucial for developing a tailored treatment plan. For a successful laser spot removal procedure, the selection of laser device, wavelength, and energy level is paramount. Patients must also adhere to post-treatment precautions, including diligent sun protection for four weeks post-procedure and avoiding any irritating products, to minimize the risk of hyperpigmentation.
Regardless of whether post-laser hyperpigmentation occurs, diligent sun protection is essential after laser spot removal. The skin becomes more fragile and light-sensitive following treatment, so extra caution is advised.
Have you heard about post-laser hyperpigmentation? This phenomenon is not uncommon. While laser spot removal is generally unsuitable for individuals with darker skin tones, diligent sun protection post-procedure is equally vital for all patients seeking aesthetic improvements.