A pico laser is an advanced device used in cosmetic dermatology that emits pulses of light measured in picoseconds, a trillionth of a second. These ultra-short bursts shatter pigment and ink into microscopic particles, which the body clears naturally, while leaving the surrounding skin largely untouched.

How pico laser works

The laser delivers concentrated bursts of energy to the target area, creating a photoacoustic effect that breaks pigment or tattoo ink into tiny particles. These are then removed by the body's lymphatic system. Because the pulses are so brief they generate little heat, so there is less risk of damage to nearby tissue.

What pico laser can treat

• Pigmentation: age spots, sunspots, freckles and melasma.
• Tattoo removal: effective even on stubborn colours such as blues and greens.
• Acne scars: stimulates collagen to soften atrophic scars and fades post-inflammatory marks.
• Wrinkles and fine lines: supports smoother, firmer-looking skin.
• Overall rejuvenation: refines pore size, tone and texture for brighter skin.

Key benefits

Compared with older lasers, pico technology is often more effective because it fragments pigment into finer particles that the body clears more easily. It tends to cause fewer side effects such as scarring or hypopigmentation, requires less downtime, and is generally safer for darker skin tones.

Pico laser tattoo removal

For tattoos, the rapid pulses create a photoacoustic effect that vibrates and shatters ink into dust-like particles the body can clear. This usually means faster fading in fewer sessions, better results on difficult colours, less discomfort, and a lower risk of pigment changes than traditional lasers.

Pico laser for pigmentation and melasma

For pigmented lesions like sunspots, freckles and melasma, the ultra-fast pulses target melanin precisely, fading even stubborn, melanin-resistant patches. Most people need a short series of sessions for the best result, along with diligent sun protection afterwards.

Pico laser for acne scars

Pico lasers tackle acne scarring in several ways: stimulating collagen to fill atrophic (rolling, boxcar and ice-pick) scars, reducing raised scar tissue, and breaking down the melanin behind post-inflammatory dark marks. Deep or severe scars may still need complementary treatments such as subcision or fillers.

Things to consider

Pico laser is a medical procedure, so a consultation with a board-certified dermatologist is essential to confirm it suits your skin type and goals. Cost varies with the size of the area and number of sessions, results build over multiple treatments, and sun avoidance afterwards is important. For published evidence, see this PubMed study on multi-pass picosecond laser for pigmentation.