Multi-Wavelength Aesthetic Laser

Lasers act through light of a specific wavelength, and each wavelength is absorbed by different targets in the skin. The erbium laser, at 2,940 nanometres, is absorbed strongly by water, so it removes very thin layers of skin with little heat spreading to the surrounding tissue, which suits resurfacing and scar treatment. The neodymium laser, at 1,064 nanometres, passes deeper into the skin and is absorbed by blood and pigment more weakly than shorter wavelengths, so it is used for vessels, hair removal across a wide range of skin types and gentle heating of deeper tissue to stimulate new collagen. A multi-wavelength platform combines both in one system, with a range of handpieces, pulse lengths and scanning patterns. The Fotona SP Dynamis is an example of such a platform. Some devices also offer modes used outside aesthetics, which are assessed separately by the relevant specialist.

Before treatment, the clinician examines your skin, asks about medicines, sun exposure, cold sores and previous treatments, and often takes photographs. You and the staff wear protective eyewear. For resurfacing, the erbium laser removes a controlled depth of skin, either across the whole area or in a fractional pattern of tiny columns that leaves healthy skin in between and speeds healing; new skin and collagen form as it heals. For vessels, the neodymium laser heats the blood inside the vessel, which then closes and is cleared by the body over the following weeks. For hair removal, it heats the hair follicle while a cooling system protects the skin surface. For non-ablative tightening, longer and gentler pulses warm the deeper layers without breaking the skin, prompting gradual collagen remodelling. Several modes may be combined in one session.

Common uses include fine lines and wrinkles, acne scars, surgical and some injury scars, enlarged pores and rough texture, sun damage, thread veins on the face and legs, small vascular marks, unwanted hair, and mild to moderate skin laxity on the face and neck. It suits adults with realistic expectations who want gradual improvement rather than the change a surgical facelift can bring. Darker skin types can be treated, but settings must be chosen carefully because the risk of pigment change is higher. Laser treatment is usually postponed during pregnancy, with active skin infection or cold sores, over a recent tan, and after recent use of some acne medicines or drugs that make the skin sensitive to light. Any suspicious mole or growth must be checked by a dermatologist before laser treatment, rather than treated for appearance.

The main benefit is flexibility: one platform can address several concerns, and the depth and intensity can be adjusted to your skin and the downtime you can accept. Gentle tightening or vascular sessions often allow you to return to normal activities the same day, with mild redness for a few hours. Fractional or deeper resurfacing causes redness, swelling and peeling for about five to ten days, and the new skin stays pink for several weeks. Common side effects are temporary redness, swelling and bruising; less often, blisters, darker or lighter patches, infection or, rarely, scarring can occur. Results build over weeks to months as collagen remodels, and most programmes need two to six sessions a few weeks apart. When travelling, time any deep resurfacing so the first healing days fall before a long flight or sun exposure, and agree how later sessions will be handled.