How effective is IPL for the removal of solar lentigoes on the face?

Studies on IPL and Q-switch laser for treatment of solar lentigo on the face have been done. Both IPL and Q-switch laser has been found to effectively treat solar lentigo, although they work by slightly different mechanisms. (Journal of the American Academy of Dermatology, 2011).

IPL removes accumulated melanin from the epidermis (top layer of the skin) and reduces the contrast between epidermal lesions and normal tissue, but does not destroy melanosomes (pigment-containing “package” in our cells). It has been suggested though, that larger patches of solar lentigo showed lack of response to IPL treatment alone (Aesthetics Journal, Sep 2015).

In conclusion, as a guide, both modalities may be used, as long as they are used under the correct indications and at the right settings by an experienced provider, but optimum treatment option and results must be individualized based on your condition.

Best regards,

Dr. Joanna Chan

Intense pulse light (IPL) is an effective treatment for removing solar lentigoes.

At the correct settings, IPL can be both effective and safe. Even for treating solar lentigoes in people with darker skin.

This study from Japan in 2016 shows the safety and effectiveness of short-wavelength IPL for removal of solar lentigo with minimal downtime and complications.

"Significant improvement was observed for all patients in digital photographs" and "Ninety percent of patients reported satisfaction with the improvement of the treatment area and convenience of the procedure".

Some doctors prefer not to use IPL for treatment of solar lentigoes because of the small risk of Post-inflammatory Hyperpigmentation(PIH) - darkening of skin.

This is an example of PIH.

If you are considering other treatments, you might want to consider lasers which are equally effective and yet safer. Examples include Picosecond Lasers or Q-switch Nd:YAG (nano-second) lasers.

A research study by the Dermatology Department of Tokyo University School of Medicine in 2018 shows that "Picosecond Lasers can be a safer and more effective treatment of solar lentigoes over conventional treatments in Asian patients."

Although energy-based devices like IPL or Lasers are the main treatments for solar lentigoes, topical creams can also help to safely and effectively lighten your pigmentation.

No matter which treatment, it is the experience and expertise of the doctor that matters!

Warmest regards,

Dr Justin Boey