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research Response of Distinct Human Dermal Fibroblast Lineages to Visible Radiation: Potential for Differential Light-Based Therapy

September 2017 in “The journal of investigative dermatology/Journal of investigative dermatology”

Different types of human skin cells respond uniquely to various colors and doses of light, which could lead to specialized light treatments for skin conditions.

research Photobiomodulation for the Management of Alopecia: Mechanisms of Action, Patient Selection, and Perspectives

34 citations, September 2019 in “Clinical, Cosmetic and Investigational Dermatology”

Light therapy can stimulate hair growth and is more effective when started early, but more research is needed on its long-term effects and optimal use.

research Spectroscopy as a Tool to Evaluate Hair Damage and Protection

2 citations, November 2018 in “International Journal of Cosmetic Science”

Chamomile extract can protect hair from damage caused by light.

research The Application of Light Emitting Diode (LED) in Cosmetic Dermatology

August 2025 in “Photodermatology Photoimmunology & Photomedicine”

LED therapy is a promising, non-invasive skin treatment, but needs standardization and personalization.

research Mechanisms and Applications of the Anti-Inflammatory Effects of Photobiomodulation

520 citations, January 2017 in “AIMS biophysics”

Photobiomodulation therapy using red and near-infrared light can reduce inflammation and aid in healing various conditions.

View more "850nm near-infrared light" in research →

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community Fin journey update, 4 years, 1mg oral daily

in Progress Pictures 387 upvotes 5 months ago

The user has been using 1mg oral finasteride daily for four years, experiencing significant hair regrowth and increased testosterone levels without negative side effects. They advise patience and monitoring for side effects, noting that their hair continues to improve with this treatment.

community My Testosterone results before and after Finasteride

in Update 151 upvotes 3 years ago

Finasteride significantly increased testosterone levels for the user, with no major side effects except watery semen, which was resolved with zinc supplements. The user's hairline stopped receding and slightly improved.