Laser Toning vs. Pico Toning vs. IPL: How Much Do You Know?

Information as of June 2026

Comparison of Wavelength, Pulse Width, and Target Differences

• 3 Laser Wavelengths 532nm/755nm/1064nm
• Pulse Width Difference Up to 1000 Times
• Target Depth 0.1mm~3mm

The Moment You Search for 'vs' Before Laser

Ahead of a Dermatology Consultation Appointment If you are searching for the 'difference between Laser Toning and Pico Toning,' you have likely already read the basic information but have yet to find the criteria to determine which laser is right for your pigmentation. In this article, we summarize the operating principles and selection criteria for these three procedures based on wavelength, pulse width, and target depth. While Laser Toning, Pico Toning, and IPL all share the commonality of 'lightening pigmentation with light,' the response of the target pigmentation and surrounding tissues differs completely depending on the wavelength range and irradiation time. The 2024 Korean Dermatological Association Guidelines for Pigmentary Disorders also classify these three procedures as 'separate treatments with overlapping indications but different priorities.' Failure to understand these differences can result in wasted budget and recovery time, while the pigmentation remains the same or even darkens. From now on, we will compare the three procedures at the cellular level. Key Points The FDA approved laser toning (Q-switched Nd:YAG) and pico lasers as devices with different mechanisms. Even though they share the same name 'Toning,' the methods of melanin particle destruction are divided into thermal coagulation and photoacoustic effects.

Wavelength difference determines target depth

Laser Toning is It uses an Nd:YAG 1064nm wavelength. This long wavelength reaches a depth of 2–3mm in the dermis layer of the skin to target dermal pigments such as deep melasma and nevus of Ota. Devices like Cutera’s Excel V+ are representative examples. For Pico Toning, you can select 532nm (KTP), 755nm (Alexandrite), or 1064nm depending on the device. Cynosure’s PicoSure uses 755nm for epidermal scars and freckles, and 1064nm for tattoo removal. The shorter the wavelength, the more energy is concentrated on the epidermis, and the weaker the penetration into deep pigments. IPL (Intense Pulsed Light) simultaneously irradiates a broadband of light ranging from 500 to 1200 nm, rather than a single wavelength. It filters specific wavelengths to simultaneously target blood vessels (absorbing red light) and melanin (absorbing brown light), but because the energy is dispersed, its effectiveness on deep melasma is limited. Nd:YAG 1064nm has a low hemoglobin absorption rate, so it selectively destroys only dermal pigments without damaging blood vessels. 755nm has a melanin absorption rate about 3 times higher than 1064nm, making it powerful against epidermal pigments. The wavelength bandwidth of IPL is 100 times wider than that of lasers, allowing it to act simultaneously on multi-layered lesions. Pulse width distinguishes thermal damage from destruction methods. The Q-switched pulse of laser toning is in the 5~10 nanosecond (10⁻⁹ sec) range. During this short period, heat is concentrated on melanin to destroy the particles via a photothermal method. Since there is no time for heat to spread to surrounding tissues, the risk of burns is low, but excessive energy may accumulate in areas with deep pigmentation. PicoToning uses 350 to 750 picosecond (10⁻¹² seconds) pulses, which are about 10 to 20 times shorter than nanoseconds. This short duration breaks melanin particles into physical shock waves using a photoacoustic effect. Because heat generation is extremely low, the risk of PIH (post-inflammatory hyperpigmentation) is low, and large particles such as tattoo ink are broken down into smaller ones, making them easier for macrophages to remove. IPL uses pulses of 2 to 20 milliseconds (10⁻³ seconds), which are more than 1,000 times longer than lasers. Long pulses work by allowing heat to slowly diffuse around the blood vessel walls and melanin, causing coagulation. While advantageous for improving redness, the effect is weak on deep pigments because the heat is dispersed.

Clinical In a 2018 paper in the Journal of Cosmetic Dermatology, pico lasers required an average of 30% fewer treatment sessions to achieve the same pigment removal rate compared to Q-switched lasers, and the incidence of PIH was less than half.

Procedure	Pulse Width	Destruction Method	PIH Risk
Laser Toning	5~10ns	Heat Coagulation	Moderate
Pico Toning	350~750ps	Photoacoustic	Low
IPL	2~20ms	Thermal Diffusion	Low~Moderate

Even with the same melasma, the top priority differs by type

For epidermal melasma(stratum corneum to basal layer), Pico Toning 532nm or 755nm is the top priority. It selectively breaks down only epidermal melanin with short pulses without delivering heat to the dermis, resulting in a low risk of PIH. Laser toning is also possible, but high energy settings can darken melasma. For dermal melasma or mixed types, 1064nm laser toning is the priority. This is because a wavelength capable of reaching 2–3mm into the dermis is required. While 1064nm can also be used with picosecond lasers, the Korean Ministry of Food and Drug Safety has granted more indications for dermal pigmentation to Q-switched lasers. IPL is suitable for complex lesions involving both shallow fine lines, freckles, and vascular dilation (rosacea). Although multiple wavelengths target different areas with a single irradiation, its effectiveness is weaker compared to lasers when used for melasma treatment alone. The Korean Dermatological Association guidelines also recommend IPL as an 'adjunctive treatment'.

• Epidermal melasma is distributed within a skin thickness of 0.1–0.3 mm, with the highest absorption rate at 755 nm wavelength
• Dermal melasma has pigment deposition at a depth of 1–3 mm, with only 1064 nm effectively reaching
• Mixed type accounts for about 60% of all melasma, with low-power multiple laser toning therapy being the standard

Recovery Period and Management Difficulty

Laser Toning causes redness for about 30 minutes to 1 hour immediately after the procedure, and washing your face and applying makeup are possible on the same day. However, applying SPF50+ sunscreen is essential for 2 weeks after the procedure, and moisturizing with a regenerating cream is necessary to prevent PIH. Typically, 5 to 10 sessions are required at 2-week intervals. Pico Toning causes minimal heat damage, so redness disappears within 10 to 20 minutes, and showering and applying makeup are possible on the same day. However, microscopic petechiae may occur immediately after the procedure, so it is recommended to avoid it 2 to 3 days before important events. The average is 3 to 6 sessions at 3 to 4-week intervals. IPL causes flushing that lasts for 2 to 4 hours, and if micro-scabs form on the treated area, they naturally fall off within 3 to 5 days. Forcibly removing scabs is strictly prohibited as it can cause hyperpigmentation. 3 to 5 sessions are recommended at intervals of 4 to 6 weeks, and the procedure is safe during the winter. Caution: Saunas and steam rooms are strictly prohibited for 48 hours immediately after laser toning. If heat stimulation is added, melanocytes are reactivated, and melasma may become darker than before the procedure.

Cost and Actual Total Calculation Method

Laser Toning is 1 session

Procedure	Cost per session	Average number of sessions	Estimated total cost
Laser Toning	50,000~150,000 won	5~10 sessions	250,000~1,500,000 won
Pico Toning	150,000~300,000 won	3~6 sessions	450,000~1,800,000 Won
IPL	100,000~200,000 Won	3~5 Sessions	300,000~1,000,000 Won

Costs may vary depending on the area, scope, and medical institution.