Our Services - Photo Dynamic Therapy


Photo Dynamic Therapy Information for Mild to Moderate Acne

What to Expect:

  • Clinical trials using blue and red light therapy without topical photosensitizer show an average reduction of 82% in inflammatory acne lesions.
  • Patients will see some improvement in inflammatory lesions as early as the 4th treatment (two weeks from the start of the treatment period).
  • Patients may see an increase in comedones (whiteheads and blackheads) during the treatment period and hence the treatment should be combined with an anticomedonal product e.g. Differin.

Improvements continue to be seen when the light treatments have been ended.

  • 45% of patients see optimum clearance 4 weeks after the final light treatment.
  • 38% achieve best results 8 weeks after the final light treatment.

The mechanism of action is not only through singlet oxygen mediated death of P.acnes, but also through the stimulatory effect of narrowband light on immunoregulatory pathways.  This is the reason for the beneficial effects of PDT light treatment continuing long after completion of the light therapy treatment course.

Advantages of PDT light only therapy.

  • No downtime for the patient or pain issues.
  • Number of inflammatory lesions continues to reduce up to 16 weeks after treatment.
  • More than 75% of patients respond with excellent results.
  • Non-invasive, patient-friendly procedure.


  • Are there any side effects from the treatments?

    No. There have been no reported adverse effects like redness or irritation from the treatment, and the light does not damage skin in any way.

  • Is it painful?

    Not at all. Because there’s no heat involved there’s no pain!

  • What actually happens during the treatment?

    You will have to remove any make up or sun block before the treatment and you will also be asked to wear some safety goggles. The light will then be positioned close to your face and the treatment will last 6 to 16 minutes. After that you’re free to go home.

Contraindications for PDT Treatment

Treatment must be withheld if the patient suffers from any of the following medical conditions:

  • Metabolic disorders, which can give rise to light-induced rashes.
  • Photo-sensitive eczema
  • Porphyria
  • Autoimmune disease e.g. Lupus Erythematosus.

The following medicines are known to cause temporary photosensitivity:

  • Chlorpromazine (Anti-Psychotic), also known as Largactil.  Patient can be treated if the medicine has not been taken within the last 8 days.
  • Griseofulvin (Anti-Fungal), also known as Fulcin, Grisovin. Patient can be treated if the medicine has not been taken within the last 5 days.
  • Isotretinoin (Anti-Acne), also known as Roaccutane.  Patient can be treated if the medicine has not been taken within the last 5 days.
  • Tetracycline (Antibiotic), also known as Tetralysal, Terra-Cotril, Terramycin, Minomycin, Cyclimycin.
  • Tetracycline HCL, Achromycin V, Tetrex, Doxycycline, Ciprofloxacin.  Patient can be treated if the medicine has not been taken within the last 5 days.
  • Methotrexate (Anti-Arthritis and Anti-Cancer), also known as Methotrexate Sodium.
  • Amiodarone (Anti-Arrythmic), also known as Cordarone, Hexarone.  Treatment can be administered at the physician’s discretion.


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