Using LED light to treat skin discoloration

The Therapeutic and Preventive Effects of Light-emitting Diodes (LEDs) Irradiation for Post-inflammatory Erythema and Hyperpigmentation: a Self-controlled

Not applicable Interventional Huashan Hospital · NCT06349447

This study tests if LED light therapy can help reduce skin discoloration caused by inflammation in healthy adults aged 20-65.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment10 (estimated)
Ages20 Years to 65 Years
SexAll
SponsorHuashan Hospital Academic / other
Locations1 site (Shanghai)
Trial IDNCT06349447 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness of 830 nm and 590 nm LED phototherapies in preventing and treating post-inflammatory erythema (PIE) and post-inflammatory hyperpigmentation (PIH). Healthy participants aged 20-65 with specific skin types will undergo LED treatments after inducing skin discoloration. The study will measure changes in skin conditions using various indices and photography over a 10-day follow-up period. The goal is to gather evidence on the efficacy of LED light therapy for these skin conditions.

Who should consider this trial

Good fit: Ideal candidates are healthy Asian individuals aged 20-65 with Fitzpatrick skin types III-IV.

Not a fit: Patients with abnormal skin conditions, systemic diseases, or those who are pregnant or breastfeeding may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a non-invasive option for patients suffering from skin discoloration due to inflammation.

How similar studies have performed: While evidence on LED efficacy for PIE and PIH is limited, similar photobiomodulation approaches have shown promise in other dermatological applications.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Healthy Asians;
2. 20-65 years old;
3. Fitzpatrick classification III-IV;
4. Sign the informed consent form.

Exclusion Criteria:

1. Have abnormal skin manifestations, such as pigment diseases, photosensitivity diseases and other allergic diseases;
2. Those with a history of abnormal systemic diseases, such as heart disease, liver disease, kidney disease, tumors, and mental illness;
3. Women who are preparing for pregnancy, pregnant or breastfeeding;
4. Have used photosensitizing drugs within two weeks before inclusion in this study;
5. Topical or systemic drugs may be used during this study;
6. bad habits, such as smoking, drinking, etc.;
7. Volunteers who have recently participated in other clinical trials;

Where this trial is running

Shanghai

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Hyperpigmentationphotobiomodulation, PIE, PIH, LED
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.