Understanding IPL and Alexandrite Laser Differences
Choosing between intense pulsed light (IPL) and an alexandrite laser can feel like splitting hairs, especially when both promise smoother skin, fewer breakouts, or a more even tone. They share cosmetic clinic brochures, but the science behind them is genuinely different, and so are the results. Getting clear-headed about those differences helps Australians pick a treatment that matches their skin, their sun exposure, and the outcome they actually want.
In a country where UV levels regularly hit extreme, where beach days in Byron Bay or the Gold Coast are a year-round lifestyle rather than a summer fling, choosing a light-based treatment is rarely as simple as booking the cheapest session. The wavelength, the pulse duration, and the device's relationship with melanin all matter. Knowing what each device does well, and where it tends to fall short, makes the conversation with a clinician far more useful.
How the Two Technologies Actually Work
IPL is not technically a laser. It is a broad-spectrum flash lamp that fires many wavelengths of light at once, usually somewhere between 500 and 1200 nanometres. A filter in the handpiece narrows that range to target a specific concern, whether that is brown patches from years of Bondi sun, red capillaries across the cheeks, or the dark coarse hair on the legs. The light scatters as it enters the skin, which is why IPL is often described as a workhorse for photo rejuvenation, treating several issues across a wide area in a single pass.
The alexandrite laser, by contrast, emits a single, focused wavelength of 755 nanometres. That single-colour beam travels in a coherent, tightly bundled path, allowing it to penetrate with precision and concentrate its energy in one target at a time. Because the wavelength sits in a sweet spot for melanin absorption, it is especially efficient at destroying the follicle in darker, coarser hairs. Operators often choose it as a long-pulsed alexandrite to slow the pulse and protect surrounding skin while still delivering enough heat to disable regrowth. The trade-off is that each pass covers a smaller spot than an IPL head, so sessions can take longer on large areas like full legs or a male back.
Wavelength, Depth, and How Skin Reacts
Wavelength is the detail that decides who can safely be treated and who cannot. IPL's broad spectrum means some of its light is absorbed by water, some by haemoglobin, and a fair chunk by melanin in the epidermis. On a Fitzpatrick III or IV skin type, which covers a large share of Australian clients, that epidermal melanin competes with the target. The result can be temporary darkening, a burned patch, or in the worst cases, post-inflammatory hyperpigmentation that takes months to fade. Practitioners in Sydney and Melbourne are used to triaging carefully because so many of their patients arrive with some level of UV-induced pigment from a surf, a run, or a weekend at the cricket.
The 755 nm wavelength of the alexandrite laser is absorbed far more selectively by melanin in the hair shaft, with less scatter into the surrounding tissue. It still requires caution on deeper skin tones, and a trained clinician will adjust fluence and pulse duration accordingly, yet the margin is generally wider than with IPL. For very fair, sun-aware clients, the alexandrite remains the gold standard for permanent hair reduction. For anyone with olive, brown, or deeply pigmented skin, the alexandrite is often paired with a YAG option or avoided altogether in favour of longer-wavelength devices.
Either way, an experienced practitioner who understands local sun habits and typical Australian skin typing will out-perform any device in isolation. That kind of clinical judgement, more than the gadget on the shelf, is what separates a safe outcome from a regret.
Suitability for Australian Skin Types and Lifestyles
Australia's UV index regularly climbs above 11 in summer, and even a quick walk from the car to the shops in Brisbane or Perth adds up over a lifetime. That cumulative exposure changes the skin, thickening the stratum corneum, deepening pigmentation, and creating melasma patterns that some devices simply cannot treat safely. A treatment plan that ignores the local climate is asking for trouble. Patients are usually asked to avoid sun exposure for at least four weeks before and after a session, which is easier said than done for tradies, teachers, or anyone whose job involves being outdoors.
IPL can be a good option for fair-skinned clients whose main concerns are diffuse redness, freckling, and sunspots, and who can stay out of the arvo sun during recovery. The alexandrite laser is usually the better match for anyone prioritising hair removal, particularly on areas like underarms, bikini line, or the face where precision matters more than coverage. Many Australians also time their laser courses for the cooler months between May and September, when re-treating after a session is simpler and the risk of incidental UV is lower.
For those thinking about a long-term plan, maintaining laser skin tightening results often comes down to the same sun-smart habits. Slipping on a hat, reaching for the SPF 50+, and booking maintenance treatments outside peak UV months will stretch the gains from any device.
Treatment Feel, Downtime, and Session Count
The sensation during a session differs noticeably between the two devices. IPL feels like a quick rubber-band snap, with the brightness of the flash often surprising first-time patients. The alexandrite laser, especially in long-pulsed mode, delivers a sharper, hotter pulse that some describe as a hot pinprick. Both are tolerable without anaesthetic on most areas, though a strong numbing cream is sometimes offered for bikini, Brazilian, or underarm work. Cooling tips and cold-air blowers are standard at reputable clinics, which is one reason a proper clinic matters more than a budget deal.
Downtime is generally mild for both. Expect pinkness for a few hours, some swelling around hair follicles for a day or two, and a freckle-like darkening of pigmented spots that flakes off within a week. The biggest aftercare rule is sunscreen, and in Australia that means a broad-spectrum SPF 50+ reapplied every two hours when outdoors. Skip that step and the investment is wasted.
The number of sessions required is where the gap widens. IPL hair removal typically needs six to ten sessions, sometimes more, because the scattered light reaches fewer follicles per pass. Alexandrite laser hair removal commonly clears in six to eight sessions for most body areas, with touch-ups once or twice a year for stray regrowth. For skin-tone goals like photo rejuvenation, IPL often produces visible change after one or two sessions, while laser pigment work tends to require a tailored course depending on the depth of the mark.
Cost, Clinic Standards, and Picking the Right Option
Pricing in Australian clinics is usually quoted per session, per area, and in some cases in package form. A single IPL photo rejuvenation session for the full face can range from roughly 250 to 450 AUD, while a single alexandrite underarm session often sits between 80 and 150 AUD. Package pricing brings the per-session figure down, and reputable clinics will always quote during a proper consultation rather than over the phone. The Therapeutic Goods Administration regulates devices used in Australia, so any clinic worth visiting should be happy to name the exact device, the operator's qualifications, and their experience with your skin type.
The right choice depends less on marketing and more on the question being asked. If the priority is fading freckles, sunspots, and broken capillaries across a wide area, IPL is usually the sensible starting point. If the priority is permanent reduction of coarse, dark hair with the fewest sessions, the alexandrite laser wins more often than not. A reputable provider will assess skin type honestly, patch-test where needed, and talk through realistic outcomes rather than offering a one-size-fits-all deal. For a broader view on scheduling treatments alongside everyday skincare, a practical read on building a routine around laser appointments is worth the time.
| Feature | IPL (Intense Pulsed Light) | Alexandrite Laser |
|---|---|---|
| Light type | Broad-spectrum flash lamp | Single 755 nm wavelength |
| Best for | Photo rejuvenation, freckles, sunspots, redness | Hair reduction, pigmented lesions |
| Skin type suitability | Fair to light olive (Fitzpatrick I–III) | Fair to medium (Fitzpatrick I–IV) |
| Typical hair-removal count | 6–10+ sessions | 6–8 sessions |
| Sensation during treatment | Mild snap, bright flash | Sharper, hotter pulse |
| Downtime | Hours of pinkness, minor swelling | Hours to a day of pinkness |
| Coverage per pulse | Larger spot size | Smaller, more precise spot |
Book a proper consultation, ask to see the patch-test results, and choose a clinic that explains the device, the wavelength, and the operator's training without hesitation. To explore clinics that take this level of detail seriously, visit laser hair removal clinics and review the team, the technology, and the consultation process before committing to a course.