EFFICACY OF INTENSE PULSED LIGHT AND DIODE LASER HAIR REMOVAL: A RANDOMIZED CONTROLLED CLINICAL TRIAL

Renata Taylor de Brito Barros; Luciana Camargo Khachikian; Christiane Pavani

Todos los trabajos

Trabajo

Título del Trabajo

EFFICACY OF INTENSE PULSED LIGHT AND DIODE LASER HAIR REMOVAL: A RANDOMIZED CONTROLLED CLINICAL TRIAL

Autores

Renata Taylor de Brito Barros
Luciana Camargo Khachikian
Christiane Pavani

Modalidad

Investigación

Área temática

Estética

Fecha de publicación

14/08/2026

País de publicación

Argentina | Argentina

Idioma de la Publicación

es-419

Página del Trabajo

https://www.even3.com.br/anais/ii-encuentro-biofotonica-597461/1254705-efficacy-of-intense-pulsed-light-and-diode-laser-hair-removal--a-randomized-controlled-clinical-trial

ISBN

978-65-272-2678-9

Palabras Clave

Hair Removal. Selective Photothermolysis. Intense Pulsed Light. Diode Laser. Randomized Clinical Trial.

Resumen

Introduction:Long-term hair removal is a common demand in aesthetic practice, performed with different light-based technologies. Intense pulsed light (IPL) offers a lower cost and greater versatility, while diode laser (DL) is more expensive but specifically designed for epilation. There is a lack of robust clinical studies comparing these technologies under standardized conditions. Objective: The study aimed to compare the efficacy of IPL (690 nm) and DL (800 nm) in reducing axillary hair density and thickness. The research also evaluated pain, adverse effects, aesthetic perception, satisfaction, and the impact on participants' quality of life. Methodology: A randomized, controlled, double-blind clinical trial was conducted with 48 women (skin phototypes I-IV). Participants underwent four axillary hair removal sessions over a 4-week period, receiving IPL on one side and DL on the other. The variables analyzed were: hair density and thickness (via ImageJ), pain (visual analog scale), adverse effects, satisfaction and perceived improvement (GAIS), and quality of life (WHOQOL-bref). Results: Both technologies significantly reduced hair density and thickness. However, DL showed superior results from the third session in density and the fourth session in thickness, with sustained effects for up to 30 weeks post-treatment. Discomfort was significantly higher with DL, although overall satisfaction and evaluator-perceived improvement were greater. Adverse effects were mild and transient: erythema and carbonization were more frequent with DL, while perifollicular edema predominated with IPL. No significant changes were observed in participants' quality of life. Conclusion: DL is more effective than IPL for female axillary hair removal, despite being associated with greater discomfort and a higher incidence of mild adverse effects. IPL demonstrated favorable clinical outcomes with less pain and great versatility, representing a cost-effective alternative in settings with limited budgets or where multifunctional equipment is required.

Título del Evento: II Encuentro Latinoamericano de Investigación y Práctica en Biofotónica y I Seminario de Investigación de Posgrado en Salud
Ciudad del Evento: Buenos Aires
Título de las Actas del Evento: Actas II Encuentro Latinoamericano de Investigación y Práctica en Biofotónica y I Seminario de Investigación de Posgrado en Salud
Nombre de la Editora: Even3
Medio de Divulgación: Meio Digital

Como citar

BARROS, Renata Taylor de Brito; KHACHIKIAN, Luciana Camargo; PAVANI, Christiane. EFFICACY OF INTENSE PULSED LIGHT AND DIODE LASER HAIR REMOVAL: A RANDOMIZED CONTROLLED CLINICAL TRIAL.. In: Actas II Encuentro Latinoamericano de Investigación y Práctica en Biofotónica y I Seminario de Investigación de Posgrado en Salud. Anais...Sao Paulo(SP) UNIMAIMONIDES, 2026. Disponible en: https//www.even3.com.br/anais/II-Encuentro-Biofotonica-597461/1254705-EFFICACY-OF-INTENSE-PULSED-LIGHT-AND-DIODE-LASER-HAIR-REMOVAL--A-RANDOMIZED-CONTROLLED-CLINICAL-TRIAL. Acceso en: 21/08/2026