You’ve tried every brightening cream the beauty counter has to offer, yet those stubborn dark spots linger. Acne is long behind you, but the faint reminders remain etched across your cheeks. Even a tattoo chosen years ago may no longer feel like a reflection of who you are today.
In Singapore’s year-round sun and humidity, where pigmentation concerns are often persistent, Pico laser represents a more modern approach. By delivering energy in ultra-short pulses, the technology is designed to target pigment, scarring, and tattoo ink effectively with less reliance on heat.
This guide explores how Pico laser works and outlines what you can realistically expect before, during, and after treatment — allowing you to approach the decision with clarity, confidence, and well-set expectations.
Laser treatments for aesthetic concerns have evolved significantly over the past decade. Pico laser is a clinically established option used to address a range of skin concerns, delivering laser energy to the skin in ultra-short pulses.
Traditional lasers emit pulses measured in nanoseconds, which are already very fast. Pico lasers operate in Picoseconds — one trillionth of a second. This difference in pulse duration changes how the skin responds to treatment.
Rather than relying primarily on heat, Pico laser generates pressure waves beneath the skin’s surface. These mechanical waves break pigment or ink particles into much smaller fragments, which the body then gradually clears through natural immune and lymphatic processes.
Because Pico laser relies more on a photoacoustic effect, heat spread to surrounding healthy tissue may be reduced depending on device settings and individual skin characteristics.
Not all pigmentation sits at the same depth within the skin, which is why Pico laser treatments are not approached with a single, uniform setting. Different wavelengths allow the laser energy to reach specific layers of the skin and target particular concerns more effectively.
Commonly used wavelengths include:
Wavelength selection is guided by the condition being treated and Fitzpatrick skin type, a classification system that categorises skin from very fair (Type I) to very dark (Type VI), particularly relevant in a diverse population such as Singapore’s.
Many skin concerns may respond well to Pico laser treatment, though outcomes depend on individual skin characteristics, the severity of the condition, and adherence to aftercare instructions.
Years of sun exposure can lead to age spots, uneven skin tone and persistent pigmentation that topical products may struggle to improve. This can include concerns such as sun spots, age spots, freckles, post-inflammatory hyperpigmentation (for example, post-acne marks), and certain types of melasma. Melasma often appears as persistent brown or grey patches, usually on the face, and can be challenging to manage with creams alone. Post-acne marks may also linger long after breakouts have resolved.
Pico laser is designed to target excess pigment while aiming to minimise impact on surrounding skin. Many people consider this treatment after spending months — or even years — trying serums, creams, or chemical peels without achieving the results they hoped for.
Pico laser is commonly used in tattoo removal treatments and can be effective for a range of ink colours. Black and dark blue inks tend to respond most predictably, while some previously difficult colours, such as certain greens and light blues, may respond more effectively. Colours like yellow can remain more challenging, and results vary.
The number of sessions required depends on the tattoo’s size, ink density, colours used, and depth of ink placement. Older or faded tattoos often require fewer sessions than newer, more vibrant ones.
Many healthy adults may be suitable candidates for Pico laser treatment when settings are properly adjusted for their skin type. However, suitability varies, and certain medical or skin-related factors require thoughtful evaluation before proceeding.
If you are pregnant, doctors generally advise postponing elective laser treatments. If you are breastfeeding, suitability depends on your doctor’s assessment and the treatment area involved.
Active skin infections—whether bacterial, viral, or fungal—must resolve fully before treatment. A history of keloid scarring may increase the risk of abnormal scar formation following laser procedures.
Those taking isotretinoin for the treatment of moderate to severe acne may also be advised to delay laser treatment for a period of time, depending on dosage, timing, and the type of laser procedure being considered.
Pico laser technology can be adjusted for a wide range of skin tones, from very fair to very dark. Your provider will evaluate your skin carefully and tailor the settings accordingly.
People with darker skin tones can often be treated safely, though there is a higher risk of pigmentation changes if settings are not appropriately calibrated. Sharing your full medical history—including medications, autoimmune conditions, and prior cosmetic treatments—helps your provider customise treatment safely.
This is particularly relevant in a diverse population such as Singapore’s, where skin tones and pigmentation patterns vary widely and require thoughtful treatment planning.
Proper preparation plays an important role in both safety and outcomes. These steps are commonly recommended two to four weeks before treatment to help reduce the risk of irritation and support a smoother recovery.
Avoid direct sun exposure as much as possible. Tanning beds should be completely avoided. Apply a broad-spectrum SPF 50 or higher daily, reapplying every two hours if you are outdoors for extended periods.
Skin that is tanned or sunburnt is generally not suitable for treatment, as this increases the risk of burns and post-treatment pigmentation changes. Treatment may be postponed until the skin has fully recovered.
At least one week before treatment, you may be advised to stop using:
These can increase skin sensitivity and the likelihood of irritation during treatment.
It would be preferable to arrive with clean skin free of makeup, although cleansing will also be provided before treatment. Residue from skincare products can interfere with laser energy delivery and may affect treatment consistency.
A Pico laser appointment typically lasts between 45 minutes and one hour, with the laser application itself taking a shorter portion of this time. The treatment area is cleansed thoroughly, and a topical numbing cream may be applied and left to take effect for around 15 to 20 minutes to enhance comfort.
Protective eyewear is worn throughout the procedure. During the treatment, sensations are often described as a light snapping or tingling feeling accompanied by mild warmth. Comfort levels vary from person to person, though most find the experience manageable.
After treatment, cooling measures may be applied to soothe the skin. Mild redness similar to a moderate sunburn is common immediately after, but many patients are able to resume daily activities shortly, with a few sensible adjustments during the initial recovery period.
Care after treatment plays a significant role in healing and overall results. Following these commonly recommended steps helps reduce complication risks.
Redness and mild swelling are common immediately after treatment and usually peak within the first few hours. These effects typically improve over 24 to 48 hours.
Cleanse gently using lukewarm water and your fingertips only. Avoid scrubs, cleansing devices, and washcloths. Skip hot showers, steam rooms, saunas, and intense exercise that causes heavy sweating during this period.
Avoid prolonged sun exposure for at least a week as healing skin is more sensitive to ultraviolet exposure. Sun exposure during this time can trigger new pigmentation that may be more noticeable than the original concern.
Apply broad-spectrum SPF 50 or higher regularly when outdoors. Wearing hats and seeking shade offer additional protection. For those with sensitive skin, mineral sunscreens may be less irritating.
Dryness, flaking, or mild peeling may occur as treated pigment rises to the surface and sheds. This can be a normal part of the process for some patients.
Avoid picking or removing flaking skin manually, as this can increase the risk of scarring or infection. Keep your routine simple with a gentle, fragrance-free moisturiser and sunscreen for the first week, and reintroduce active skin ingredients only after the skin has healed. A topical cream may also be prescribed to aid with recovery and reduce potential side effects.
Results develop gradually as the skin repairs and renews itself.
During the first one to two weeks, pigmented areas may appear darker before fading. This occurs as pigment fragments move toward the surface and shed. While this can be concerning, it is often expected—though you should consult your provider if reactions seem excessive or prolonged.
Many patients notice visible improvement around three to four weeks after each session. More noticeable results often appear with repeat treatments as pigmentation takes time to clear.
The number of sessions varies depending on the concern being treated:
Sessions are usually spaced four to six weeks apart to allow adequate healing between treatments.
Most side effects are mild and temporary, including:
Less common side effects include temporary darkening or lightening of the skin. People with darker skin tones may face a slightly higher risk of these changes. Rare complications can include blistering, infection, scarring, or herpes simplex flare-ups, particularly when treating areas around the lips.
Pico laser is one treatment option that may help improve pigmentation, acne marks, and unwanted tattoos for selected patients. Understanding what to expect, following aftercare instructions, and working with an experienced medical professional all contribute to safer outcomes. Because every skin concern is different, professional assessment remains essential.
If you are considering Pico laser treatment, a consultation with a licensed medical practitioner is necessary to determine whether it is appropriate for your skin type, condition, and goals.
At Mizu, this assessment forms the foundation for a considered, medically guided treatment plan that prioritises safety, suitability, and long-term skin health.
The information provided in this blog post is for educational and informational purposes only and should not be considered medical advice. Always consult with a healthcare professional or dermatologist before starting any new skincare routine or treatment, especially if you have existing skin conditions or concerns. Results may vary from person to person, and individual needs may require different approaches.
Dr Tan Ying Zhou, known as Dr YZ Tan, is the founder and Medical Director of Mizu Aesthetic Clinic.
His journey into aesthetics began with a medical degree from St. George’s, University of London, followed by an internship in Dermatology at the National Taiwan University Hospital.
Some of his favourite aesthetic procedures include nose augmentation and anti-ageing solutions, and he also serves as a trainer for emerging aesthetic doctors.
His philosophy revolves around personalised treatments tailored to each individual’s ageing concerns, aiming to transform the ageing process gracefully into a pleasant journey towards confidence and wellness.
