What are the differences between Q-switched lasers and picosecond lasers?
Disease description:
I am 35 years old this year, and recently I have been dissatisfied with my skin condition. Some dark spots and fine lines have appeared on my face. I have learned that both Q-switched laser and picosecond laser can improve these issues, and I would like to know what differences exist between them?
Doctor's answer (1)
Dr. Chen Lu
Q-switched laser and picosecond laser are two common laser aesthetic technologies, which differ in wavelength, treatment range, recovery time, and other aspects.
Q-switched lasers have shorter wavelengths, whereas picosecond lasers have longer wavelengths, allowing the latter to penetrate deeper into the skin. Secondly, the two differ in treatment applications: Q-switched lasers are primarily used to treat pigmented skin conditions such as melasma and freckles, while picosecond lasers can not only treat pigmentation but also be used for skin rejuvenation. Additionally, recovery time varies between the two. Q-switched lasers cause greater tissue damage, resulting in a longer recovery period and potential side effects such as localized redness and pain. Picosecond lasers induce less damage and have a shorter recovery time, although side effects such as skin burns and itching may still occur.
Patients are advised to undergo detailed skin evaluation under the guidance of a qualified physician to determine the most suitable treatment plan. Moreover, regardless of which technology is chosen, postoperative care is crucial. Measures such as avoiding direct sun exposure, using sunscreen, maintaining skin cleanliness, and ensuring proper hydration should be followed to promote skin recovery and prolong treatment results.
