That difference is fundamental to understanding why IPL remains so useful. Instead of being built around one tightly defined laser wavelength, an IPL handpiece produces a broader spectrum of light which can then be refined using filters and treatment settings.

In practical terms, that means one IPL system may be used across several aesthetic applications. Depending on the equipment, protocol and patient assessment, these can include long-term hair reduction, superficial pigmentation, visible redness and photorejuvenation.

The underlying principle is selective absorption. Light energy is absorbed by chromophores including melanin and haemoglobin, so changing the filter, pulse characteristics and energy settings changes how that light is delivered and which targets it is intended to interact with.

This is also why the filter set and level of treatment control can tell you more about a professional IPL machine than a headline power figure on its own.

SHR stands for Super Hair Removal. It is not a different light source from IPL; it is a way of delivering IPL energy specifically for hair-reduction treatments.

Traditional IPL is often associated with individual pulses delivered from one position at a time. SHR protocols can instead use repeated pulses while the handpiece moves continuously across the treatment area.

Often referred to as an In-Motion technique, this allows heat to build progressively within the treatment area rather than relying entirely on a single higher-energy pulse.

For practitioners, the attraction is straightforward: it can make larger areas quicker to cover while supporting a more comfortable treatment experience when used with appropriate settings and cooling.

IPL also has a broader role in photorejuvenation. Rather than focusing on one isolated concern, these treatments can be used where the aim is to improve the appearance of tone, radiance, superficial pigmentation and some of the visible effects of sun exposure.

That versatility should not be confused with universality. IPL is not appropriate for every pigmentation or vascular concern, and proper assessment remains important before treatment. In some cases, a different technology — or no light-based treatment at all — may be more appropriate.

For a clinic comparing machines, this makes the available filter range an important practical consideration. A broader, well-designed filter set can give a practitioner more flexibility across different treatment objectives than a system with only a limited range.

Ultra Silk Plus includes 480nm, 530nm, 590nm, 640nm and 690nm filters. Each is used within a different part of the system's treatment protocols.

Cooling can sound like one of the less interesting parts of an IPL specification sheet, but in day-to-day treatment it matters. Professional IPL works by creating controlled heat within light-absorbing targets, while the surface of the skin still needs to be managed carefully.

Active contact cooling helps control heat at the epidermis and supports patient comfort while treatment energy is being delivered. It becomes particularly relevant during repeated-pulse and In-Motion protocols.

Ultra Silk Plus uses sapphire contact cooling with thermoelectric cooling technology on its IPL handpiece.

Cooling is not a substitute for correct treatment parameters, however. No cooling system makes excessive or inappropriate settings safe, so practitioner assessment and technique remain central to treatment.

Claims that an IPL system is simply suitable for “all skin types” deserve closer examination.

IPL does not only encounter pigment in the intended treatment target. Melanin within the epidermis can also absorb light energy, which means treatment planning becomes increasingly important as skin pigmentation increases.

Suitability therefore depends on a combination of skin phototype, indication, filter, wavelength range, treatment settings and professional assessment, rather than the technology name alone.

This is one of the areas where wavelength-specific laser technologies can become particularly relevant. For hair reduction in darker phototypes, longer-wavelength laser options may offer advantages in suitable systems and protocols because of their lower relative absorption by epidermal melanin.

Large power figures, long lists of indications and increasingly complex interfaces can all look impressive in isolation. They do not necessarily tell you whether a machine will be useful in your clinic six months after it arrives.

The more useful starting point is your treatment menu. What are patients already asking for? Which services do you want to develop? And how much of the technology are you realistically going to use?

Once those questions are clear, the specification becomes much more meaningful.

For a clinic built almost entirely around hair reduction, a dedicated Diode Laser may be the most logical route. The technology is purpose-built around wavelength-specific laser hair reduction and does not need to justify itself through a wider skin-treatment menu.

IPL becomes particularly interesting when the clinic also wants to offer photorejuvenation, selected pigmentation treatments and treatments for superficial visible redness.

There is also no reason the two technologies have to be treated as rivals. A platform such as Ultra Silk Plus contains both IPL SHR and multi-wavelength Diode Laser, so the practitioner can choose the more appropriate route according to the patient and treatment objective.

Rather than functioning as a standalone IPL machine, Ultra Silk Plus brings together three distinct treatment technologies on one platform.

For a clinic looking specifically for IPL, the useful question is not whether having three technologies sounds impressive. It is whether the additional Diode and Nd:YAG capability will genuinely be used.

Where a treatment menu includes hair reduction, IPL skin treatments and tattoo removal, bringing those technologies together can reduce the need for multiple separate consoles while still allowing each treatment category to use its own dedicated technology.

For a clinic that intends to concentrate on one narrow treatment category, a more specialised machine may still make better sense. There is little value in paying for versatility that will spend most of its life unused.

There is a tendency in aesthetics to look for the machine that can be described as the best first purchase. In reality, the answer changes considerably depending on the clinic.

A business with strong demand for dedicated laser hair reduction may sensibly prioritise Diode. A clinic concentrating on resurfacing or scarring may have a stronger case for fractional laser. Where patients are asking for hair reduction alongside photorejuvenation, superficial pigmentation and visible redness treatments, IPL starts to make much more sense.

The better question is not simply which machine offers the most treatments? It is which treatments will your clinic actually perform often enough for the technology to earn its place?

One of IPL's strengths is the amount of control it gives a trained practitioner. Filters, pulse characteristics and energy settings can all be adjusted according to the treatment being performed.

That flexibility is also why good training matters. Understanding skin phototype, patient selection, contraindications, filter choice and treatment parameters is part of using IPL properly — not an optional extra once the machine has been installed.

Pure Tone professional equipment training is CPD certified and nurse-led by qualified nurses. Training can take place at the Pure Tone Aesthetics Training Academy in Cheadle or our nurses can travel to the customer's clinic and train the team there.

Professional machines are personally delivered and installed, with ongoing clinical and technical support available after training.