The Hair Loss Encyclopedia

What are the Factors That Induce Paradoxical Hypertrichosis After Laser Hair Removal?

January 2024 in “ Aesthetic Surgery Journal ”

Yoshikazu Inoue, Hiroshi Nishioka, Maki Inukai, Yusuke Shimizu, Masato Kimura, Hirotaka Akita, Takayuki Okumoto

paradoxical hypertrichosis laser hair removal diode laser SHR periareolar area skin type sun protection super hair removal sunblock

TLDR Using sun protection and diode laser SHR reduces unexpected hair growth after laser hair removal.

In a study conducted at our clinic, paradoxical hypertrichosis was observed in a small minority of cases following laser hair removal, consistent with other reports. The study found no differences in incidence related to skin type. However, the use of daily sun protection and laser hair removal with diode laser SHR significantly reduced the incidence rates. Additionally, the periareolar area was identified as a high-risk region for developing paradoxical hypertrichosis, alongside previously reported common sites.

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Research cited in this study

2 / 2 results

UV Light May Induce Hypertrichosis Through Production of Prostaglandin E2

research UV Light May Induce Hypertrichosis Through Production of Prostaglandin E2

7 citations , October 2006 in “Medical hypotheses”

UV light might cause excessive hair growth by increasing PGE2 in the skin.

Paradoxical Hypertrichosis After Laser Epilation

research Paradoxical Hypertrichosis After Laser Epilation

101 citations , June 2005 in “Journal of The American Academy of Dermatology”

Very few people experience increased hair growth after laser hair removal, especially those with darker skin and black hair.

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6 / 38 results

community Solving Hair Loss with Research at MIT

in Research/Science 595 upvotes 1 year ago

Hair loss treatments like minoxidil, finasteride, TDM-105795, and PP405. MIT is hosting a hackathon to find innovative hair loss solutions.

community Evidenced Based Meta-Analyses and Systemic Reviews of Androgenic Alopecia and Treatments

in Research/Science 15 upvotes 5 years ago

Evidence-based treatments for androgenic alopecia, such as minoxidil, finasteride, low-level laser light therapy, dutasteride, platelet-rich plasma, and topical ketoconazole. It discusses the efficacy, safety, and mechanism of action of these treatments, as well as future developments in understanding this polygenic condition.

community switched from topical to oral minoxidil (topical mixed with water) 3 months ago and aside from being much easier i’ve also had much more density overall. My results aren’t even finished yet!

in Progress Pictures 3 years ago

This user discussed using oral minoxidil as a hair loss treatment, and was cautioned against mixing topical minoxidil with water and drinking it due to potential side effects and risks. Other users shared their concerns about the dangers of self-prescribing medications without consulting a doctor.

community So...why does switching from fin to dut ruin people's hair?

in Finasteride/Dutasteride 77 upvotes 1 year ago

Switching from finasteride to dutasteride can cause hair shedding, with mixed results; some see improvement, others see worsening. Using both treatments together initially may help reduce shedding.

community Tom Cruise at the Mission Impossible premiere hair.(He's 61 y/o)

in Chat 392 upvotes 2 years ago

The conversation speculates on whether Tom Cruise uses hair loss treatments like Finasteride or Dutasteride, with some suggesting he naturally has good hair like Brad Pitt, while others joke about Scientology or genetics playing a role. Specific treatments mentioned include Finasteride, Dutasteride, and possibly high-quality hair products or procedures like PRP (Platelet-Rich Plasma).

community A little under 2 months on minoxidil and weekly microneedling

in Progress Pictures 119 upvotes 3 years ago

Treatments for hair loss, including the use of minoxidil and microneedling; as well as discussing the potential of using finasteride or a ketoconazole shampoo.

Related Research

4 / 4 results

Hair Loss and Hirsutism in the Elderly

research Hair Loss and Hirsutism in the Elderly

22 citations , February 2002 in “Clinics in Geriatric Medicine”

Many elderly women experience unwanted facial hair and various hair loss conditions, with treatments available for each condition.

research Causes and Management of Hypertrichosis

61 citations , January 2002 in “American Journal of Clinical Dermatology”

Treatment of Hair Loss

research Treatment of Hair Loss

370 citations , September 1999 in “The New England Journal of Medicine”

Finasteride and minoxidil are effective for hair loss, but continued research is needed for better treatments.

Disorders of Hair Growth: Diagnosis and Treatment

research Disorders of Hair Growth: Diagnosis and Treatment

26 citations , January 1994 in “McGraw-Hill eBooks”

Many hair loss conditions can be treated.