Vbeam is a brand of pulsed dye laser (PDL) made by Candela Medical that uses a 595 nm wavelength of light to treat visible blood vessels, redness, and a wide range of skin conditions. It works by delivering precise pulses of light that are absorbed by hemoglobin, the red pigment inside blood vessels, causing targeted vessels to heat up and collapse without damaging the surrounding skin. The technology has been in clinical use for about 30 years and remains one of the most widely used vascular lasers in dermatology.
How the Laser Works
Vbeam operates on a principle called selective photothermolysis. The 595 nm wavelength is specifically chosen because hemoglobin absorbs light strongly at that frequency. When the laser pulse hits the skin, it passes through the outer layers and is absorbed almost exclusively by the blood inside visible or abnormal vessels. That absorption converts light energy into heat, which damages the vessel walls and causes them to seal shut. Over the following days and weeks, your body clears away the damaged vessels naturally.
One reason the 595 nm wavelength remains a gold standard for vascular work is that it balances two competing needs: penetrating deep enough into the skin to reach blood vessels in the dermis, while still being absorbed strongly enough by hemoglobin to do its job efficiently. Longer wavelengths (like 1064 nm) penetrate deeper but are absorbed less by hemoglobin, which increases the risk of side effects like pigment changes or scarring.
The newer Vbeam Prima model also includes a 1064 nm wavelength option, giving practitioners a second tool for deeper or larger vessels like leg veins, as well as pigmented lesions such as age spots and sun spots.
What It Treats
Vbeam’s FDA clearances cover a surprisingly long list of conditions. The most common reasons people seek treatment include:
- Rosacea: persistent facial redness and visible blood vessels
- Port wine stains: flat, red or purple birthmarks caused by malformed capillaries
- Spider veins and broken capillaries: on the face or legs
- Hemangiomas: red vascular growths, including in infants and children
- Scars: particularly red or raised scars, including surgical scars and stretch marks
- Poikiloderma of Civatte: reddish-brown discoloration on the neck and chest from sun damage
- Warts: on the skin or feet
- Inflammatory acne: red, active breakouts
- Psoriasis plaques
- Wrinkles: particularly around the eyes and mouth
For children, Vbeam is specifically cleared for port wine stains and infantile or congenital hemangiomas, making it one of the few laser systems routinely used in pediatric dermatology.
What a Session Feels Like
Vbeam systems include a built-in Dynamic Cooling Device (DCD) that sprays a short burst of liquid cryogen onto the skin immediately before each laser pulse. This drops the skin surface temperature dramatically, cooling only the top 200 micrometers of tissue. That selective cooling serves two purposes: it protects the outer skin from heat damage and significantly reduces the sting of the laser. Most people describe the sensation as a quick snap, like a rubber band, followed by a cold mist. The cooling also allows practitioners to safely use higher energy settings without increasing burn risk.
Sessions are typically quick. A full-face rosacea treatment might take 15 to 20 minutes. No general anesthesia is needed, and most people return to normal activities the same day, though your skin will look flushed or blotchy immediately after.
Bruising and Recovery
The most distinctive side effect of pulsed dye laser treatment is purpura: small red or purple spots that look like bruises. These appear when the laser ruptures tiny blood vessels at the surface, and they’re a normal part of the healing process. Purpura typically fades over 7 to 10 days. Some swelling around the treated area is also common but usually resolves within a few days.
Not every treatment causes visible bruising. Practitioners can adjust the energy settings to reduce or eliminate purpura, though lower-energy, non-purpuric settings may require more sessions to achieve the same result. For conditions like rosacea, many providers start with gentler settings and increase energy over subsequent visits based on how your skin responds.
Aftercare Essentials
The most critical aftercare rule is sun avoidance. You should strictly avoid direct sun exposure for at least one month after treatment to prevent dark discoloration in the treated skin. Use a broad-spectrum sunscreen of SPF 30 or higher (mineral sunscreens with zinc oxide or titanium dioxide are preferred) along with a hat or protective clothing whenever you’re outdoors.
In the days immediately following treatment, keep the routine gentle: cleanse the area softly and apply a plain ointment like Vaseline or Aquaphor once or twice daily until normal skin color returns. Take lukewarm showers and skip intense exercise for about two days. Avoid aspirin, ibuprofen, and alcohol for a week, as these can increase bruising. Don’t pick at the treated skin, even if a scab forms. And counterintuitively, avoid ice packs, which can worsen swelling.
How Many Sessions You’ll Need
The number of treatments depends on the condition being treated and its severity. For rosacea, clinical protocols typically involve four treatments spaced four weeks apart, with significant improvement in redness scores after the fourth session. Port wine stains often require more sessions, sometimes 10 or more over the course of a year or longer, because the malformed vessels are denser and can partially regenerate. Spider veins and broken capillaries on the face may clear in one to three sessions. Scars and stretch marks generally need a similar range but respond more gradually.
Results aren’t always permanent. Rosacea is a chronic condition, so maintenance sessions every 6 to 12 months are common. Port wine stains can darken again over time, particularly those treated in childhood. Isolated spider veins, once fully eliminated, typically don’t return in the same spot, though new ones can form elsewhere.
Skin Tone Considerations
Vbeam works most predictably on lighter skin tones (Fitzpatrick skin types I through III). In people with darker skin (types IV through VI), melanin in the outer skin layer competes with hemoglobin for the laser’s energy. This means the epidermis absorbs more heat than intended, raising the risk of burns, post-inflammatory hyperpigmentation (dark spots), or hypopigmentation (light spots).
Treatment is still possible for darker skin tones, but it requires careful adjustments: lower energy levels, longer pulse durations, and reliance on the cooling system to protect the epidermis. Some providers use topical lightening agents before and after treatment to reduce pigmentation risks. If you have medium to dark skin, look for a provider experienced in treating your skin type with pulsed dye lasers specifically.
Vbeam vs. IPL and Other Lasers
Intense pulsed light (IPL) devices are the most common alternative for treating redness and visible vessels. The key technical difference is that IPL emits a broad spectrum of light (400 to 1400 nm) rather than a single, precise wavelength. This makes IPL versatile but less targeted. Vbeam’s single 595 nm wavelength is absorbed more efficiently by hemoglobin in deeper vessels, which generally makes it more effective for stubborn vascular conditions like port wine stains and severe rosacea. IPL can work well for mild, diffuse redness and has less downtime, but it’s typically not the first choice for well-defined vascular lesions.
Another option is the 532 nm (KTP) laser, which actually has a higher absorption rate for hemoglobin than the 595 nm wavelength. Some comparative studies have found KTP lasers more effective for superficial facial vessels, with less bruising. The tradeoff is that 532 nm light doesn’t penetrate as deeply, so it’s less effective for larger or deeper vessels. Vbeam occupies a middle ground: strong hemoglobin absorption with enough penetration depth to handle a wide range of vessel sizes, which is why it remains the most broadly used vascular laser in practice.