How Often Should You Get PicoSure? How Long Do Picosecond Laser Results Last?

In recent years, medical-aesthetic technology has advanced continuously, and laser treatments have become increasingly diverse. Whether it’s picosecond laser (PicoSure), skin-clearing laser, ruby laser, fractional laser, or IPL, many people are becoming increasingly confused — especially with the picosecond laser and skin-clearing laser that have gained popularity over the past two years, which patients frequently ask their doctors about. What exactly is a picosecond laser? How often should you get it? Should I choose a picosecond laser? “Pico” is a unit of time, where 1 picosecond = 1 × 10⁻¹² seconds — an extremely short duration. A picosecond laser is one in which the pulse duration (pulse width) of each laser emission reaches the picosecond level. It is 1,000 times faster than traditional lasers, and also faster than the earlier “skin-clearing laser,” causing less thermal damage to the skin. For this reason, picosecond lasers are currently very popular among beauty-conscious clients.

How often should you get a picosecond laser? How long do the results last? Five key points you should know about picosecond lasers.

1. Picosecond laser is suitable for almost everyone, but a doctor must begin with a skin-condition diagnosis to arrange the appropriate treatment and dosage. Simply chasing the newest or most fashionable laser will not necessarily solve your skin concerns — and it may even make the situation worse. In addition, all laser treatments carry a risk of post-inflammatory hyperpigmentation (rebound darkening), so post-treatment sun protection and skincare are also very important.

2. How often should you get a picosecond laser and how long do results last? Everyone’s skin condition is different, so dosage and treatment scheduling are tailored to each person’s needs. Generally speaking, the effect of a picosecond treatment lasts about 3 to 6 months. Clients are advised to learn more and consult their doctor after treatment, as good aftercare can help maintain better results.

3. Are dark spots suitable for picosecond laser? Because dark spots come in many types — such as melasma, freckles, age spots, and sun spots — and their causes vary, some are due to melanin overproduction, some to thickened keratinization, some are deep and some superficial. Therefore, before undergoing laser treatment, a dermatology specialist should first examine and understand the condition of the dark spots so that treatment can be properly targeted.

4. Will a picosecond laser cause wounds? Can you get a picosecond laser in summer? Will it cause rebound darkening? Many people have the misconception that “you can’t get laser treatments in summer,” mainly because they believe laser treatment leaves small wounds and scabs — and if exposed to the sun or dirty air without proper sun protection, wounds can easily become inflamed and cause pigmentation, commonly known as rebound darkening. However, with the current progress of aesthetic medicine, along with ongoing education about aftercare and sun protection, rebound darkening has become rare. Because the pulse duration of a picosecond laser is extremely fast, light energy does not have time to convert into heat, so thermal damage is greatly reduced. This causes less damage to the skin and makes it more suitable for treatment year-round.

5. Does a picosecond laser hurt? After the doctor evaluates the client’s skin condition, a topical numbing cream is applied before the picosecond laser treatment based on each person’s skin type. Because the new picosecond laser works faster and more effectively than the earlier skin-clearing laser and causes less thermal damage, most people do not feel much pain.

No laser treatment produces results in a single session — most require multiple treatments before results gradually appear.
Aesthetic medicine has advanced rapidly in recent years, from the earlier IPL laser (nanosecond) to the new picosecond laser: painless, no wounds, almost no skin recovery period, able to stimulate collagen regeneration, with a noticeable brightening effect and a longer duration of action than traditional lasers. However, many people undergo picosecond laser treatments on a regular basis. Before your next treatment, it is best to have the doctor fully observe how your skin responded to the previous laser session, and then recommend an appropriate laser treatment. We also remind clients that although aesthetic clinics can now offer a variety of lasers with different energy wavelengths based on individual skin conditions and needs, no laser treatment produces results in a single session — most require multiple treatments before results gradually appear. Beauty-conscious clients should be patient and avoid rushing, and should follow proper post-treatment sun protection and skincare to avoid rebound darkening and achieve the results of laser treatment.