Key Takeways:
- PicoSure works through a photomechanical mechanism rather than heat, creating controlled disruptions in the treatment area that trigger the body’s own biological repair and renewal processes.
- Whether addressing pigmentation or tattoo ink, it is the body that does the clearing. PicoSure creates the conditions for that process to begin by breaking the target down into particles small enough to be processed naturally over time.
- The picosecond pulse is what shifts the effect from thermal to mechanical. How PicoSure interacts with a specific person and concern is assessed during consultation with a qualified medical professional.
Knowing that PicoSure operates at a trillionth of a second is one thing. Understanding what that speed actually does when the device is used is another conversation entirely.
This post is for anyone in Melbourne who has already wrapped their head around what PicoSure is and wants to go further.What the photomechanical effect actually means in practice, what happens to pigment and tattoo ink when PicoSure fires, and how that science translates into a clinical setting.
PressureWave technology and how it works
PressureWave is the patented mechanism central to how PicoSure interacts with the treatment area. It is associated with the delivery of energy at picosecond speeds, and is considered one factor that differentiates PicoSure’s approach from laser systems that rely primarily on heat.
When energy is delivered at very short pulse durations, the interaction with the target may shift from primarily thermal effects toward a more mechanical-based interaction. Rather than relying predominantly on heat, the ultra-short pulse can generate a pressure-based effect that interacts with the target in. Cynosure refers to this photomechanical effect as PressureWave technology.
The energy is described as involving a pressure-based component that may influence how it interacts with pigment and tissue.
How Does PicoSure Laser Work? The Photomechanical Effect Explained
At the point of contact, the pressure-based pulse acts on tissue at a very small scale. These interactions are not injuries in the traditional sense, but are described as a form of stimulation the body may respond to through its own biological processes.
This response involves the skin’s own cells and signalling processes. In clinical literature, these interactions are associated with the release of cellular messengers that may influence deeper tissue activity, including pathways linked to collagen and elastin. Unlike systems that rely more heavily on heat, this interaction is associated with the mechanical characteristics of the pulse
The role of individual biology matters here. PicoSure is used within a framework that involves the body’s own processes. Research published in the Australasian Journal of Dermatology examining picosecond laser technology notes that individual biological variation plays a significant role, which is why responses can differ even when the technology and clinical approach are similar.
What Happens to Pigment and Tattoo Ink When PicoSure Fires
Pigment, whether naturally occurring in the skin or deposited as tattoo ink, shares one characteristic that makes it a target for laser technology. It absorbs light. When PressureWave energy is delivered to a pigmented target, the mechanical force shatters it into particles so small that the body’s own immune system may identify and process them naturally over time.
For skin pigmentation such as sun spots or uneven tone, the target is melanin. The pressure based interaction is designed to break down concentrated deposits of melanin without broadly affecting the surrounding tissue, which may allow the body to gradually clear what remains.
Tattoo ink presents a more complex picture. Different ink colours absorb different wavelengths of light, which is why PicoSure’s two primary wavelengths, 755nm and 532nm, are relevant to the range of colours it may help to address. Darker inks and certain colours that older laser systems historically struggled with may respond differently to picosecond energy compared to nanosecond systems, though individual response always varies.
In both cases the body does the clearing. PicoSure is designed to help create the conditions for that process to begin. How completely and how quickly it progresses depends on individual factors that can only be assessed through a personalised consultation with a qualified medical professional.
What Is the difference between PicoSure and traditional lasers?
Traditional laser systems rely primarily on photothermal action. They deliver heat to the target to interact with pigment or other structures, and they have a well-established role in cosmetic laser practice across a range of clinical contexts.
The core difference with PicoSure is the shift from heat to pressure. Where nanosecond systems act through sustained thermal energy, PicoSure’s photomechanical approach acts through a pressure-based pulse. The two are not interchangeable and neither is universally preferable. They are different tools built around different mechanisms, and clinical context determines which suits a given concern.
Pulse duration is the other distinction. Nanosecond systems deliver energy over a longer window than picosecond pulses. This difference may influence how the energy interacts with the treatment area, though whether it is relevant to a specific concern is a clinical consideration.
Professional standards at Luxe Lips
At Luxe Lips, a cosmetic clinic in Melbourne, our care is grounded in medical ethics and quiet clinical responsibility. Every treatment pathway is approached as a medical process, with established health protocols and safety guiding each step.
Across our clinics in Moonee Ponds, Camberwell, and Brighton, our medical professionals carry out a thorough screening process for every person. For those considering PicoSure laser treatments, this includes reviewing medical history, assessing anatomical suitability, and considering psychological readiness. In line with local guidelines, this evaluation helps determine whether a proposed plan aligns with your health.
Medical professionals proceed only when a treatment is clinically appropriate. If your underlying concern, the condition of the surrounding skin, or your broader health profile means PicoSure isn’t the right fit, we will explain why and discuss what that means for you. The focus is always on clear information and maintaining a clinical environment where safety and ethical standards come first.
Because responses and circumstances vary, a consultation is required to determine suitability before PicoSure laser treatments are considered.
Questions we’re often asked about how PicoSure works
With a focus lens array, PicoSure concentrates its pulse into microscopic zones that create laser-induced optical breakdown beneath the skin’s surface. These are tiny cavities formed by the pressure effect rather than by heat, and the surface layer remains intact.
This disruption is associated with changes in cell signalling. In response, the skin releases growth factors and cytokines that may support the production of collagen and elastin during dermal remodelling.
Clinical literature describes this as a plausible mechanism, while noting effects are generally modest. How the skin responds is assessed individually with a qualified medical professional.
A picosecond is one trillionth of a second, and PicoSure delivers energy in pulses this short. At that speed, energy reaches the target faster than heat can spread into surrounding tissue.
This is what shifts the interaction from a primarily thermal one toward a mechanical, pressure-based effect. A longer pulse deposits sustained heat, while an ultra-short pulse concentrates energy in time, producing a pressure response instead.
The speed is the reason PicoSure is classed as a picosecond laser rather than a conventional one, and it underlies how the device is designed to interact with pigment and tissue.
Darker skin contains higher concentrations of melanin, which absorbs laser energy. Melanin acts as a competing chromophore, meaning it can absorb energy intended for the target and raise the risk of unintended effects. This is why skin tone affects how any laser interacts with the treatment area.
As DermNet’s clinical overview of laser therapy in skin of colour notes, melanin can act as a competitive chromophore that increases the risk of side effects, making assessment and device selection particularly important in this patient group.
Heat-based systems concentrate this risk, because sustained thermal energy in melanin-rich skin can affect surrounding tissue. PicoSure’s pressure-based delivery is associated with reduced reliance on heat, which is relevant to how it interacts across different skin tones.
PicoSure is designed to concentrate its effect on the target rather than the surrounding area. The pressure-based pulse is directed at pigment or ink, and the ultra-short duration limits how far energy spreads into nearby tissue.
Because the pulse relies on pressure rather than sustained heat, thermal spread to surrounding tissue is reduced compared with heat-based systems. This is one reason picosecond delivery is associated with a lower risk of heat-related effects.
Reduced impact does not mean no impact. How the skin responds varies individually and is assessed during consultation with a qualified medical professional.
Precision comes from two features working together: pulse duration and wavelength. The picosecond pulse concentrates energy into an extremely short window, which limits how far that energy spreads before it acts on the target.
Wavelength determines what the energy is absorbed by. PicoSure’s wavelengths are absorbed by specific targets such as pigment and ink, which directs the effect toward those structures rather than the surrounding area.
A focus lens array can further concentrate the pulse into defined micro-zones. Together these narrow where and how the energy acts, which is assessed and set by a medical professional.
