An interventional study of Intense Pulsed Light and Diode Laser in Hair Removal, sponsored by University of Nove de Julho. Terminated at 2 sites in Brazil. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-08-27.
Sponsored by University of Nove de Julho · Not applicable, Interventional, and Treatment
The goal of this clinical trial is to compare the effectiveness of two hair removal techniques: Intense Pulsed Light (IPL) and Diode Laser in woman underarm. .
Main Questions:
Researchers will compare IPL and Diode laser to see if hair removal is similar at short and long time course.
The IPL treatment will be applied to one axilla. The 800nm Diode Laser treatment will be applied to the other axilla. Treatment allocation will be randomized for each participant. Participants will undergo monthly sessions for four months, totaling four treatments. Follow-up assessments will occur 30 days and 6 months after the final session.
This is a randomized controlled trial of hair removal in axilla for women, being intense pulsed light compared to diode laser.
The session frequency will be once a month for 4 months, totaling 4 treatments. There will be a follow-up at 30 days and 6 months after the end of the treatment.
After the evaluations and photographs, the armpits will be cleaned with 0.5% alcoholic chlorhexidine and will be shaved with a disposable razor blade. Neutral water-based gel will be applied to the region to receive the treatment. Patients will be instructed not to perform any trichotomy procedures in the region during the research period.
The treatment technique will be punctual where the applicator will be kept in full contact with the skin at 90° and moved to the next point after deposition of energy over the entire treatment area until the defined energy is delivered. The applicator tip will be cooled as much as the equipment allows.
University of Nove de Julho is the lead sponsor of 239 studies on the registry; 51 are open to participants now.
Of its 8 completed or terminated interventional studies of FDA-regulated products, 1 (13%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
The hair from axilla of one side of the body will be removed with 4 sessions of Intense Pulsed Light
Device: Intense Pulsed Light · Device: Diode Laser
The hair from axilla of one side of the body will be removed with 4 sessions of Diode Laser
Device: Intense Pulsed Light · Device: Diode Laser
The axilla will be treated with intense pulsed light, being right or left, depending upon randomization.
Also known as: Randomized
The axilla will be treated with diode laser, being right or left, depending upon randomization.
Also known as: Randomized
Hair count
The counting of the hairs will be performed by observing the visible hairs in the treatment area photographs of the volunteers. In this way, a percentage comparison will be made in relation to the initial number of hairs. The hair count will be conducted in a 4cm² quadrant in the central axillary region.
Time frame: before each session (S0,Month1, Month2, Month3), 4-6 weeks after the last session (Month4) and at follow-up 24 weeks after the last session (Month 10).
Global Aesthetic Improvement Scale (GAIS)
The photographs will be evaluated by two independent and blind evaluators, making a comparison between the photos before the procedure (S0) and the final effect of the short-term (S4) and long-term (S5) treatment. The evaluations will be classified according to the percentage of change: no results 0% reduction, bad reduction 0% to 25%, average 25% to 50%, good 50% to 75% and excellent 75%-100%.
Time frame: 4-6 weeks after the last session (Month4) and at follow-up 24 weeks after the last session (Month 10).
Hair Thickness
Images of the demarcated region will be obtained using a dermatoscope (5 images per region per assessment). The hair thickness will be measured using the Image J software (NIH).
Time frame: before each session (S0,Month1, Month2, Month3), 4-6 weeks after the last session (Month4) and at follow-up 24 weeks after the last session (Month 10).
Pain Score (Visual Analogue Scale)
Immediately after the end of the procedure in each armpit, the patient will respond using the visual analogue scale (VAS) to the sensation of pain perceived during the procedure. It consists of a straight line, 10 centimeters long, where one end represents the total absence of pain and the other end represents the most intense pain possible. The person experiencing the pain is asked to mark a point on the line that represents the intensity of the pain they are experiencing. The marked point can be measured in centimeters from the end that represents the absence of pain.
Time frame: before each session (S0,Month1, Month2, Month3), 4-6 weeks after the last session (Month4) and at follow-up 24 weeks after the last session (Month 10).
Quality of Live
The WHOQOL-bref quality of life questionnaire consists of 26 questions, with responses following a Likert scale (from 1 to 5, with higher scores indicating better quality of life) his questionnaire includes 2 questions that assess overall quality of life, while the remaining questions make up 4 domains (physical, psychological, social relationships, and environment).
Time frame: before first session (S0), and at follow-up 24 weeks after the last session (Month 10).
Satisfaction level Score
The patient's satisfaction level with the treatment will be assessed through a questionnaire containing five multiple-choice questions. These questions will address the degree of discomfort experienced during the sessions, how many sessions this discomfort persisted, the satisfaction level regarding the achieved results, the perceived percentage improvement in the concern, and, finally, how likely the patient would recommend the undergone treatment to someone with a similar concern. Each response receive 1 up to 5 points, and the total Score varies from 4 to 20, being the highest as the highest the satisfaction.
Time frame: At follow-up 24 weeks after the last session (Month 10).
Self - Esteem Scale
The Self - Esteem Rosenberg Scale consists of 10 statements related to self-evaluation and self-acceptance. Respondents must indicate their level of agreement or disagreement with each statement on a response scale that typically ranges from "strongly disagree" to "strongly agree." The statements are mostly positive and are used to assess the extent to which a person feels positive or negative about themselves.
Time frame: before first session (S0) and at follow-up 24 weeks after the last session (Month 10).
Adverse events
Adverse effects noted during and after treatments will be recorded
Time frame: before each session (S0,Month1, Month2, Month3), 4-6 weeks after the last session (Month4) and at follow-up 24 weeks after the last session (Month 10).
Plan to share: No
This study is terminated, as verified in Aug 2025. You cannot join it, but the record below documents what was studied.
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University of Nove de Julho