8. Juli 2020

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Langfristige Wirksamkeit des Diodenlasers für Epilation

Deutschland – Regensburg – Klinische Studie > Langfristige Wirksamkeit des Diodenlasers für Epilation

Long-term efficacy of a high power diode laser for hair removal

Introduction

Many patients complain of problems regarding excess hair growth such as hirsutism and hypertrichosis
In the last few years the technology of laser assisted hair removal is advancing rapidly using ruby laser (694 nm), alexandrite laser (755 nm) or diode laser (810 nm)

Aim of the Study

To investigate the longterm efficacy of a high power diode laser forhair removal:
Volunteers (study I) and patients using a spotsize of 8 mm
Volunteers (study II) using an enlarged spotsize of 12 mm

Figure 1: Absorption of melanin at three differentwavelengths normalized to 694 nm (ruby laser)

Methods

Laser therapy was performed using a high power diode laser (810 nm)
The number of re-growing hair was counted four weeks and three months after the last laser treatment
The ratio of hairs in the treated area to an untreated area nearby, which served as control, was referred toas re-growth
Punch biopsies for histological evaluation of hair follicles were taken 24 h after laser treatment
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