Photodynamic Therapy (PDT) in Seoul

Photodynamic Therapy (PDT) explained

PDT is a dermatology treatment that combines a photosensitising medicine, usually based on aminolevulinic acid (ALA) or a related compound, with a light source. In Seoul it is used mainly for stubborn acne and oily skin, and by dermatologists for some sun-damage conditions.

How Photodynamic Therapy (PDT) works

The solution is applied to the skin and absorbed by active cells, including oil glands and acne bacteria, for about 30 minutes to a few hours. A red or blue light, or sometimes IPL, then activates it, creating reactive oxygen that damages those targets. This can reduce oil production and inflamed spots. The skin stays sensitive to light for about 48 hours afterwards.

Who Photodynamic Therapy (PDT) is for

Moderate inflammatory acne
Very oily skin with recurring breakouts
People who cannot take isotretinoin
Acne that has not improved with creams alone
Visitors with a few free days indoors

Who should avoid Photodynamic Therapy (PDT)

Pregnancy or breastfeeding
Porphyria or known sensitivity to light
Allergy to ALA or similar photosensitisers
Taking light-sensitising medicines, unless the doctor approves
Anyone who cannot avoid sunlight for 48 hours

What happens at the appointment

Dermatologist consultation and review of medicines
Cleansing and light exfoliation or extraction
Photosensitising solution applied and left to absorb
Light activation for several minutes
Solution removed, sunblock applied, and you leave covered

Aftercare and flying home

Stay indoors and away from sunlight and bright lights for 48 hours
Wear a hat, mask and sunscreen if you must go out
Use a gentle cleanser and simple moisturiser
Do not pick at crusts or peeling
Do not schedule a daytime flight with a window seat within 48 hours

Side effects and risks

Redness, swelling and a burning feeling, often strong for 1–3 days
Peeling, crusting or a sunburn-like look for up to a week
An acne flare after treatment
Darker or lighter patches, more likely with sun exposure
Rarely, blistering or a strong burn if exposed to sunlight too soon

How much does Photodynamic Therapy (PDT) cost in Seoul?

₩100,000–₩400,000 (about US$75–300) — Price depends on the photosensitising product, the light source, the treatment area and whether extraction is included. Dermatology clinics may also adjust the absorption time, which affects intensity and recovery. All prices are estimates and change with promotions.

Why get Photodynamic Therapy (PDT) in Korea?

Seoul has many dermatology clinics with experience in acne PDT, and it is often combined with extraction or acne lasers. Prices are usually lower than in many Western cities, but visitors must plan around the sun-avoidance period.

Frequently asked questions

How much does PDT for acne cost in Seoul?

PDT for acne in Seoul usually costs about ₩100,000–₩400,000 per session. The product, light source and treatment area change the price.

Does photodynamic therapy hurt?

It can sting or burn during the light stage, sometimes strongly. Clinics may use cooling air or pause the light to make it more comfortable.

How many PDT sessions do I need for acne?

Most people need 2–4 sessions, 2–4 weeks apart. Results can last months, but some people need upkeep.

Can I go outside or fly after PDT?

Avoid sunlight and bright light for 48 hours. Fly only after that period, or keep fully covered and avoid window seats, and expect redness or peeling for several days.

Is PDT safe?

It is an established dermatology treatment when done by a doctor. The main risk is a strong burn or pigment change if skin is exposed to light too early.

Do I need a doctor for PDT?

Yes. PDT uses a medical photosensitiser and should be done at a dermatology clinic after a doctor reviews your skin and any medicines you take.