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Related Concept Videos

Accessory Structures of the Skin: Hair Growth and Types01:20

Accessory Structures of the Skin: Hair Growth and Types

Hair growth begins with the production of keratinocytes by the basal cells of the hair bulb. As new cells are deposited at the hair bulb, the hair shaft is pushed through the follicle toward the surface. Keratinization is completed as the cells are pushed to the skin surface to form the shaft of hair that is externally visible. The external hair is completely dead and composed entirely of keratin. Hair can be cut or shaven without damaging the hair structure because the cut is superficial. Most...

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Related Experiment Video

Updated: Jun 4, 2026

Using a 1064-nm Picosecond Neodymium-Doped Yttrium Aluminum Garnet Laser for Periorbital Hyperpigmentation
04:43

Using a 1064-nm Picosecond Neodymium-Doped Yttrium Aluminum Garnet Laser for Periorbital Hyperpigmentation

Published on: May 23, 2025

Laser hair removal.

Omar A Ibrahimi1, Mathew M Avram, C William Hanke

  • 1Department of Dermatology, University of California Davis, Sacramento, California 95816, USA. omar.ibrahimi@gmail.com

Dermatologic Therapy
|February 1, 2011
PubMed
Summary
This summary is machine-generated.

Laser hair removal (LHR) effectively targets hair follicles for permanent hair reduction. While ideal for fair skin, LHR is now safe and effective for all skin types with proper technique.

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Photoselective Vaporesection of the Prostate via an End-firing Lithium Triborate Crystal Laser
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Last Updated: Jun 4, 2026

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Published on: May 9, 2018

Area of Science:

  • Dermatology
  • Cosmetic Procedures
  • Laser Technology

Background:

  • Laser hair removal (LHR) is a globally popular cosmetic procedure.
  • Variable efficacy is reported, influenced by practitioner skill and patient factors.
  • The underlying principle is selective photothermolysis targeting hair follicles.

Purpose of the Study:

  • To review the principles and practices of laser hair removal.
  • To highlight factors influencing LHR efficacy and safety.
  • To emphasize the importance of understanding laser-tissue interactions for optimal outcomes.

Main Methods:

  • Review of the extended theory of selective photothermolysis.
  • Discussion of patient selection and preoperative preparation.
  • Examination of laser safety principles and device familiarity.

Main Results:

  • LHR is effective for hair follicle destruction and removal.
  • While fair skin with dark hair is ideal, LHR is now applicable to all skin types.
  • Knowledge of anatomy, physiology, and laser-tissue interactions is crucial.

Conclusions:

  • Successful LHR requires understanding of hair follicle biology and laser physics.
  • Proper patient selection and preparation are vital for efficacy.
  • Minimizing complications necessitates adherence to safety protocols and device knowledge.