Intense pulsed light (IPL) is one of the most widely performed light-based cosmetic treatments. A photofacial session takes 15–30 minutes, requires no incisions, and most patients return to work the same day. IPL is effective for a specific set of concerns — sun spots, freckles, diffuse redness, and visible capillaries — but it is not a laser, it is not appropriate for all skin types, and it can make some conditions worse.
This guide covers what IPL is, how it differs from laser treatments, what it can and cannot treat, skin-type safety, what to expect during and after treatment, and how to decide whether it is the right choice.
What IPL is and how it works
IPL devices emit a broad spectrum of light (typically 500–1200 nm), rather than the single wavelength of a laser. Filters are placed over the device to narrow the range of wavelengths delivered, allowing the provider to target either melanin (pigment) or hemoglobin (blood vessels).
When the light enters the skin, it is absorbed by the target chromophore and converted to heat:
- Melanin in sun spots, freckles, and age spots absorbs the light, heats up, darkens, and then gradually flakes off over 7–14 days as the body clears the damaged pigment.
- Hemoglobin in visible capillaries and areas of redness absorbs the light, causing the vessel walls to collapse and be reabsorbed by the body.
Because IPL emits multiple wavelengths at once, it can address both pigmentation and vascular concerns in the same session. UT Southwestern Medical Center describes IPL as "a nonsurgical treatment to improve the color and texture of the skin" that targets "pigment and vascular imperfections without harming the surrounding tissue."
IPL vs. laser: what the difference means for you
| Feature | IPL | Laser (e.g., Fraxel, CO₂, Nd:YAG) |
|---|---|---|
| Light source | Broad-spectrum (500–1200 nm) | Single wavelength |
| Precision | Lower — treats broad areas | Higher — targets specific depth/chromophore |
| Downtime | Minimal (hours to days) | Varies: none to 2 weeks depending on device |
| Sessions needed | 3–6 typically | Varies by device and indication |
| Pain | Mild (rubber band snap) | Varies |
| Skin type range | Fitzpatrick I–III (IV with caution) | Device-dependent; some safe for all types |
| Cost per session | $300–$600 | $500–$3,000+ depending on device |
IPL is less precise than a laser because the light is not coherent — it scatters through tissue rather than focusing on a single depth. This makes it gentler but also means it cannot treat conditions that require deep or highly targeted energy delivery.
What IPL treats well
IPL has the strongest evidence and clinical track record for:
Sun damage and age spots
IPL is one of the most effective treatments for solar lentigines (age spots, sun spots, liver spots) and ephelides (freckles) caused by UV exposure. After treatment, pigmented spots darken over 2–3 days (they may look like coffee grounds), then crust and flake off over the next week. Most patients see 20–30% improvement per session, with cumulative results building over a series.
Diffuse redness and rosacea
IPL targets the hemoglobin in dilated capillaries, making it effective for the erythema (redness) of early-to-moderate rosacea, particularly the erythematotelangiectatic subtype. The AAD and multiple clinical practices use IPL as a first-line light-based treatment for persistent facial redness and visible telangiectasia.
Broken capillaries (telangiectasia)
Individual visible vessels on the nose, cheeks, and chin respond well to IPL. Multiple sessions are often needed, and maintenance treatments may be required.
Overall skin tone and texture
By reducing background redness and sun-induced pigmentation simultaneously, IPL can improve the overall clarity and evenness of skin tone. A mild collagen-stimulating effect has been reported but is modest compared to fractional laser or RF microneedling.
What IPL does not treat well — or can make worse
Melasma
This is the most important caveat. Melasma is a hormonally driven pigmentation disorder that sits deeper in the skin than sun damage. IPL's broad-spectrum light can trigger inflammation, which in turn stimulates melanocytes to produce more pigment — paradoxically darkening melasma rather than improving it. Multiple clinical practices and dermatology groups explicitly warn against IPL for melasma.
If you have melasma, safer approaches include topical hydroquinone or tranexamic acid, chemical peels, and — for carefully selected patients — picosecond or low-fluence Q-switched Nd:YAG lasers under dermatologist supervision.
Deep wrinkles and skin laxity
IPL does not deliver enough concentrated energy to remodel collagen at the depth needed for meaningful wrinkle reduction or skin tightening. Fractional lasers (CO₂, erbium, Halo), RF microneedling, or ultrasound-based devices (Ultherapy, Sofwave) are more appropriate for these concerns.
Acne scars
IPL does not address the atrophic scarring left by acne. Microneedling, fractional laser resurfacing, or chemical reconstruction of skin scars (CROSS) are the evidence-based approaches.
Darker skin tones (Fitzpatrick IV–VI)
This is not a preference — it is a safety boundary. In darker skin, the higher melanin content in the epidermis absorbs a large portion of the IPL energy before it reaches the target. The result is a high risk of burns, blistering, hyperpigmentation, and hypopigmentation. Most IPL device labeling restricts use to Fitzpatrick I–IV, and many dermatologists limit IPL to Fitzpatrick I–III.
Clinical data consistently shows that patients with darker skin tones (Fitzpatrick IV–VI) are at significantly higher risk of post-inflammatory pigmentation changes after IPL. A retrospective analysis of IPL complications found that pigmentary changes — including both hyperpigmentation and hypopigmentation — occurred in over 60% of patients with Fitzpatrick III–IV skin, with risk increasing substantially in Fitzpatrick V–VI.
Active acne
IPL is not a first-line treatment for active inflammatory acne. Some evidence supports photodynamic therapy (PDT) with a photosensitizing agent for acne, but standard IPL alone has limited benefit.
What to expect: treatment timeline
Before the session
- Avoid sun exposure and tanning for at least 2 weeks.
- Discontinue retinoids, exfoliating acids, and photosensitizing products 3–5 days before treatment.
- Do not take isotretinoin (Accutane) within the past 6 months.
- Inform your provider of all medications, supplements, and medical conditions.
During the session
- The skin is cleansed. A cold gel is applied to improve light conduction and protect the surface.
- Protective eyewear is placed on the patient and provider.
- The IPL handpiece is pressed against the skin and pulses of light are delivered. Most patients describe the sensation as a warm rubber band snapping against the skin.
- A typical full-face treatment takes 15–30 minutes.
After the session
| Timeframe | What happens |
|---|---|
| Immediately after | Redness and warmth (like a mild sunburn) lasting 2–4 hours. Slight swelling around eyes or cheeks is possible. |
| Days 1–2 | Pigmented spots darken and become more visible. Skin may feel tight or dry. |
| Days 3–7 | Darkened spots crust and flake off. Do not pick or scrub. |
| Days 7–14 | Most pigment has shed. Redness reduction becomes visible. Skin looks more even. |
Sun protection is essential after IPL. UV exposure during the healing phase can trigger PIH and negate the results. SPF 30+ applied daily, with reapplication every 2 hours during sun exposure, is non-negotiable.
How many sessions
Most practices recommend 3–5 sessions spaced 3–4 weeks apart for optimal results. Some practices recommend 5–6 sessions. Improvement is cumulative — each session addresses a deeper layer of pigment and a new set of vessels. After the first session, expect approximately 20–30% improvement in brown spots and subtle redness reduction. After the second session, cumulative improvement typically reaches 35–50%.
Maintenance: once or twice yearly, depending on sun exposure and skin response. Results can last 1–2 years with proper sun protection and maintenance.
Cost
IPL photofacial pricing in the US typically ranges from $300 to $600 per session for a full face. Small areas (hands, chest) may cost less. A full series of 3–5 sessions represents an investment of approximately $900–$3,000.
What influences price:
- Geography. Major metro areas cost more.
- Provider credentials. Board-certified dermatologist offices charge more than med spas but bring clinical training in skin-type assessment and complication management.
- Device quality. FDA-cleared devices (such as Lumenis M22, Cynosure Icon, Sciton Joule) deliver more consistent results than older or unbranded platforms.
Lower prices may reflect older technology, less experienced providers, or packages that include fewer follow-up visits. Ask what device is being used and whether the provider performs a Fitzpatrick assessment before quoting a price.
Contraindications
IPL should be avoided if you:
- Have Fitzpatrick IV–VI skin (high PIH and burn risk).
- Have active melasma (risk of worsening).
- Are pregnant or breastfeeding (insufficient safety data).
- Have used isotretinoin in the past 6 months.
- Have a history of keloid scarring.
- Have active herpes simplex (antiviral prophylaxis may be needed).
- Are taking photosensitizing medications.
- Have a recent tan (natural or artificial).
- Have active skin infections or inflammatory conditions in the treatment area.
Questions to ask before booking
- "What device are you using, and is it FDA-cleared for my concern?" Ask for the manufacturer name. FDA clearance means the device has been evaluated for safety and effectiveness for specific indications.
- "How do you determine my Fitzpatrick type?" A proper Fitzpatrick assessment should happen before any treatment plan is discussed.
- "Do you treat my skin type with IPL, or would you recommend a different modality?" If you have olive or darker skin and the provider does not discuss the limitations, that is a red flag.
- "What happens if IPL causes hyperpigmentation?" The provider should have a plan for managing PIH — typically topical tyrosinase inhibitors, sometimes hydroquinone, and strict sun protection.
- "Can IPL worsen my melasma?" If you have melasma and the provider says IPL will help, get a second opinion from a board-certified dermatologist.
Sources
- UT Southwestern Medical Center. "IPL Photofacial Treatment." UT Southwestern, 2026. https://utswmed.org/conditions-treatments/ipl-photofacial-treatment
- WebMD. "Intense Pulsed Light Therapy (IPL Treatment)." WebMD, 2026. https://www.webmd.com/beauty/intense-pulsed-light-treatment-overview
- American Academy of Dermatology. "Laser and Light Therapy." AAD Public Information, 2026. https://www.aad.org/public
- KM Surgical & Dermatology Associates. "Why IPL Isn't Safe for Darker Skin Types (Fitzpatrick IV–V)." KM Surgical, June 2025. https://www.kmsurgical.co.nz/articles/why-ipl-isnt-safe-for-darker-skin-types
- Kim J, et al. "Second-Degree Burns Following Intense Pulsed Light Therapy in a Patient with Fitzpatrick Skin Type IV." Cureus, 2025;17(8):e90119. https://www.cureus.com/articles/393474
- Phoenix Surgical Dermatology Group. "IPL Treatment: Benefits, Results & What to Expect." PSDG, February 2026. https://www.psdermgroup.com/ipl-treatment-photofacial-benefits
- Allen Medical Aesthetics. "IPL Photofacial Before and After: Results and Timeline." 2026. https://allenmedicalaesthetics.com/blog/ipl-photofacial-before-and-after
- U.S. Food and Drug Administration. "Aesthetic/Cosmetic Devices." FDA, 2026. https://www.fda.gov/medical-devices/products-and-medical-procedures/aesthetic-cosmetic-devices
