VBeam Pulsed-Dye Laser (Rosacea & Vascular)

VBeam 595 nm pulsed-dye laser (PDL) for rosacea, facial redness, broken capillaries, spider veins, port wine stains, poikiloderma, and dilated facial vessels. Sessions run a few minutes to thirty minutes with immediate return to activity. Mild purpura may occur for three to seven days at higher fluence settings. Available at Dr. Michele Green's Upper East Side cosmetic dermatology clinic in Manhattan.

The VBeam 595 nm pulsed-dye laser at Dr. Michele Green's clinic is a vascular-selective laser that uses the principle of selective photothermolysis to target oxyhemoglobin in blood vessels while sparing surrounding tissue. The 595 nm wavelength corresponds to a strong absorption peak for oxyhemoglobin — the oxygenated form of haemoglobin — which absorbs light at this wavelength several times more efficiently than the surrounding dermal collagen and water, creating a high chromophore-selectivity ratio. When the pulsed-dye laser fires at a vascular lesion, the energy is absorbed preferentially by the blood vessel's oxyhemoglobin, converting to heat that coagulates the vessel wall endothelium; the vessel subsequently collapses and is absorbed over days to weeks as the body clears the coagulated haemoglobin and vascular debris. The VBeam's variable pulse duration — from 0.45 ms to 40 ms — allows the treating clinician to match pulse width to vessel diameter, as larger vessels require longer pulses to allow full thermal relaxation time. Treatable conditions at Dr. Green's clinic include diffuse facial redness and flushing associated with rosacea; telangiectatic facial vessels on the cheeks, nose, and chin; broken capillaries; spider angiomas; poikiloderma of Civatte (redness, mottled pigmentation, and skin thinning on the lateral neck from sun damage); port wine stains; and venous lake lesions on the lip. At lower fluence settings, no downtime occurs and patients can return to activity and apply makeup immediately after treatment. At higher fluence settings targeting larger vessels, mild purpura (bruising from laser-induced vessel rupture) may occur and resolves within three to seven days. Multiple sessions are generally recommended for rosacea and diffuse telangiectasias; single sessions may suffice for isolated discrete vessels.