Lasers and light for rosacea redness
Vascular lasers and intense pulsed light (IPL) heat the blood in small facial vessels, so they treat visible vessels that creams cannot remove and persistent redness that brimonidine and oxymetazoline creams only fade for a few hours. In small trials, pulsed-dye laser (PDL) and IPL showed no significant difference; 532 nm KTP cleared more visible vessels than PDL but caused more swelling; and a microsecond 1064 nm Nd:YAG protocol reduced redness less than PDL but hurt less.[1][2][3]
Written by the Seoul Rosacea editorial team and medically reviewed by a Korean Board-Certified Dermatologist (AAD International Fellow · ASLMS member). Last reviewed: .
Which rosacea features respond to lasers and light?
Persistent central redness and visible vessels respond best. The 2019 ROSCO update added IPL and vascular lasers, naming PDL and 532 nm KTP, as treatment options for persistent redness.[4] A systematic review rated the evidence for laser and IPL as low to moderate certainty, strongest for visible vessels.[5] Bumps and pustules are treated mainly with creams and tablets (see treatment options). The AAD adds that IPL can reduce flushing, and that in experienced hands it can ease ocular rosacea (AAD, checked 18 October 2026).
PDL, KTP, IPL or Nd:YAG: how do they compare?
| Device | Light | What the trials found |
|---|---|---|
| Pulsed-dye laser (PDL) | 595 nm | No significant difference from IPL for redness, vessels and symptoms over three monthly sessions in 29 patients; reduced redness more than microsecond 1064 nm Nd:YAG |
| KTP laser | 532 nm | Cleared 85% of visible vessels after three sessions against 75% for PDL in 15 patients; caused more swelling and redness afterwards |
| Intense pulsed light (IPL) | Filtered broad-band light (560 nm filter in the trial) | No significant difference from PDL in a split-face trial; the AAD notes it is gentler but needs more sessions than a laser |
| Nd:YAG | 1064 nm, microsecond pulses in the trial | Patients rated redness 34% better against 52% for PDL; pain scores were lower (3.07 against 3.87 out of 10) |
Sources: PDL against IPL,[1] KTP against PDL,[2] and PDL against Nd:YAG.[3] The trials were small, settings were not standardised between devices, and the Nd:YAG comparison included only skin types I to III.
What is the difference between PDL and V-Beam?
None in principle: V-Beam is one brand of 595 nm pulsed-dye laser. At higher settings PDL can leave purple bruise-like marks (purpura); both PDL trials above used non-purpuric settings designed to avoid them.[1][3]
How many laser sessions does rosacea need?
The trials used three or four sessions about a month apart.[1][2][3] Rosacea stays active after vessels are treated, so redness can return over time and a top-up session may be needed. Avoid a tan or sunburn before sessions, since extra pigment in the skin also absorbs laser light.
What does treatment feel like, and what happens afterwards?
Treatment feels like a series of warm snaps against the skin; in the Nd:YAG trial, average pain was 3.87 out of 10 for PDL and 3.07 for Nd:YAG.[3] Swelling and extra redness for a day or more are common: in the KTP split-face trial, 79% had swelling beyond one day on the KTP side and 71% on the PDL side.[2] For a few days afterwards, keep the skin cool, avoid saunas, hot baths and hard exercise, and use sunscreen every morning.
Are lasers safe for Asian or darker skin?
They can be used, with care. The ROSCO panel advises that IPL and vascular lasers in darker skin types need a provider experienced with those skin types, because they can leave light or dark patches (dyspigmentation).[4] The AAD warns that laser and light treatments can be dangerous in inexperienced hands. Ask who will treat you, which device and settings will be used, and whether a test patch is planned.
What is genesis toning?
Korean clinics use "genesis toning" or "laser genesis" as a service name for 1064 nm Nd:YAG treatment passed over the whole face, usually for general redness and texture with little downtime. Devices and settings vary between clinics. The randomised comparison above tested one specific microsecond protocol, which improved redness less than PDL; results with other settings may differ.[3]
What does the clinic offer for rosacea redness?
Delight Dermatology Clinic in Seoul does not have a pulsed-dye laser. For redness it offers a 1064 nm Nd:YAG genesis toning service, listed as GentleMax Genesis Toning at KRW 220,000–1,450,000 for a single session or a package. Prices checked 2026-10-18; confirm at consultation.
Can laser cure rosacea?
No. Lasers and IPL reduce visible vessels and redness, but the tendency to rosacea remains, so skincare, sun protection and, when needed, creams continue.
Is IPL or laser better for rosacea?
In a randomised split-face trial, both improved redness, vessels and symptoms, with no significant difference between PDL and IPL.[1] Device choice depends more on your skin type, the size of the vessels and the operator’s experience.
Will laser help rosacea bumps?
Not as a main treatment. Bumps and pustules respond to ivermectin, azelaic acid, metronidazole or low-dose doxycycline; lasers are added for the redness that remains.
References
Bibliographic records retrieved from PubMed (U.S. National Library of Medicine).
- Neuhaus IM, Zane LT, Tope WD. Comparative efficacy of nonpurpuragenic pulsed dye laser and intense pulsed light for erythematotelangiectatic rosacea. Dermatol Surg. 35(6):920-8. PubMed: 19397667
- Uebelhoer NS, Bogle MA, Stewart B, Arndt KA, Dover JS. A split-face comparison study of pulsed 532-nm KTP laser and 595-nm pulsed dye laser in the treatment of facial telangiectasias and diffuse telangiectatic facial erythema. Dermatol Surg. 33(4):441-8. PubMed: 17430378
- Alam M, Voravutinon N, Warycha M, Whiting D, Nodzenski M, Yoo S, et al. Comparative effectiveness of nonpurpuragenic 595-nm pulsed dye laser and microsecond 1064-nm neodymium:yttrium-aluminum-garnet laser for treatment of diffuse facial erythema: A double-blind randomized controlled trial. J Am Acad Dermatol. 69(3):438-43. PubMed: 23688651
- Schaller M, Almeida LMC, Bewley A, Cribier B, Del Rosso J, Dlova NC, et al. Recommendations for rosacea diagnosis, classification and management: update from the global ROSacea COnsensus 2019 panel. Br J Dermatol. 182(5):1269-1276. PubMed: 31392722
- van Zuuren EJ, Fedorowicz Z, Tan J, van der Linden MMD, Arents BWM, Carter B, Charland L. Interventions for rosacea based on the phenotype approach: an updated systematic review including GRADE assessments. Br J Dermatol. 181(1):65-79. PubMed: 30585305