Related Experiment Videos
[Histological changes elicited by hair removal lasers]
Tokue Kato1, Tokuya Omi, Goro Asano
1Department of Dermatology, Nippon Medical School, Tokyo, Japan. tokue@nms.ac.jp
Journal of Nippon Medical School = Nippon Ika Daigaku Zasshi
|March 21, 2003
Summary
Ruby and alexandrite lasers cause similar follicular damage for hair removal. Histological changes like cystic formation and giant cells were observed one month post-treatment with both laser types.
Area of Science:
- Dermatology
- Laser Physics
Context:
- Unwanted hair removal is commonly achieved using various laser systems.
- Understanding the histological effects of different lasers is crucial for optimizing treatment outcomes.
Purpose:
- To compare the follicular changes induced by ruby and alexandrite laser hair removal at varying energy densities (fluences).
Summary:
- Histological examination of skin biopsies revealed moderate follicular damage immediately after treatment with either ruby or alexandrite lasers.
- One month post-treatment, both laser types resulted in similar histological changes, including cystic formation of hair follicles and the presence of foreign body giant cells.
- Immunohistochemistry and TUNEL assays were utilized to assess cellular responses and apoptosis.
Impact:
- The findings suggest that ruby and alexandrite lasers, when used at comparable fluences, exert similar histological effects on hair follicles.
- This comparative analysis aids in understanding the long-term follicular response to common laser hair removal technologies.