Examining how light reflects off human skin during whole-body photobiomodulation therapy

Light Reflection on Human Skin in Whole-Body Photobiomodulation Therapy: Clinical Trial

Not applicable Interventional Universidade Federal de Sao Carlos · NCT06866522

This study is testing how different skin types reflect light during a whole-body therapy using red and infrared light to see if it can be improved for everyone.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment72 (estimated)
Ages18 Years to 30 Years
SexAll
SponsorUniversidade Federal de Sao Carlos Academic / other
Locations1 site (São Carlos, São Paulo)
Trial IDNCT06866522 on ClinicalTrials.gov

What this trial studies

This study investigates the effects of photobiomodulation therapy (PBMT) on human skin by measuring the reflection of light from different skin phototypes. Participants aged 18 to 30 will be divided into three groups based on their skin type and will undergo whole-body PBMT using red and infrared light. The study aims to quantify the amount of light reflected from the skin during this therapy, which has not been previously established. The findings could provide insights into optimizing PBMT for various skin types.

Who should consider this trial

Good fit: Ideal candidates for this study are healthy males and females aged 18 to 30 with a BMI between 18.5 and 29.9.

Not a fit: Patients with tattoos in the assessment areas, a history of skin cancer, or cognitive difficulties may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the effectiveness of photobiomodulation therapy by tailoring it to individual skin types.

How similar studies have performed: While photobiomodulation therapy has been studied, this specific approach focusing on light reflection and skin phototype is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* male and female
* age between 18 and 30 years
* body mass index (BMI) between 18.5 and 29.9 kg/m2.

Exclusion Criteria:

* tattoo in the light reflection assessment areas
* history of skin cancer
* skin lesions such as open wounds in the mid-thigh, abdomen, biceps brachii, back and calf
* patients with cognitive difficulty reporting thermal sensation

Where this trial is running

São Carlos, São Paulo

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 Photobiomodulation TherapyPhototypephotobiomodulationlow-level laser therapyskin opticsmelaninlight reflection
Last reviewed 2026-06-10 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.