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GlossaryFitzpatrick Skin Types (Fitzpatrick Scale)

system categorizes skin by its reaction to UV light

The Fitzpatrick Skin Types, also known as the Fitzpatrick Scale or Fitzpatrick Classification, is a system used to categorize human skin based on its response to ultraviolet (UV) light. Developed by Dr. Thomas B. Fitzpatrick in 1975, it classifies skin into six types, ranging from Type I (very fair skin that always burns and never tans) to Type VI (very dark skin that never burns and tans very easily). This classification helps dermatologists assess skin cancer risk, plan treatments, and predict how skin will react to various procedures.

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research Hair Removal Options in Darker Skin Types Through Laser Innovation and Energy-Based Modalities

October 2025 in “International Journal of Research in Dermatology”

New laser technologies and methods are safer and more effective for hair removal on darker skin tones.

research Hair Removal in Darker Skin Types Using Light-Based Devices

1 citations , January 2009 in “Elsevier eBooks”

Laser hair removal can be effective for darker skin but requires careful use to avoid side effects.

research Diode Laser 805 Hair Removal Side Effects in Various Ethnicities: Cohort Study Results

21 citations , March 2020 in “Journal of lasers in medical sciences”

Diode laser hair removal is effective and safe, but side effects vary by ethnicity and treatment number.

research Validity of Trichoscopy in the Diagnosis of Primary Cicatricial Alopecias

34 citations , April 2016 in “International Journal of Dermatology”

Trichoscopy is a useful method for identifying primary cicatricial alopecias and their specific types.

research Efficacy and Pain Tolerance of Alexandrite Laser Hair Removal at Different Stages of the Menstrual Cycle

1 citations , February 2024 in “Aesthetic Surgery Journal”

Laser hair removal works well and is safe during any menstrual cycle phase.

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community Comprehensive Microneedling Guide

in Microneedling 291 upvotes 3 years ago

Microneedling for hair restoration involves daily use of a 0.3 mm device and weekly use of a 0.5 mm device. Combining microneedling with Minoxidil can enhance hair growth.

community Derma told me to quit finastirde

in Finasteride/Dutasteride 276 upvotes 4 months ago

A dermatologist advised stopping finasteride after 3-6 months, but many users disagreed, stating it should be used indefinitely to maintain hair. Users recommended finding a new dermatologist due to the perceived misinformation.