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Research

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research Measurement of Hair Cortisol as a Retrospective Stress Marker: Effects of Prewashing, Pulverization, Temperature, and Sonication

December 2025 in “Therapeutic Drug Monitoring”

This study found that while pulverization yielded slightly higher hair cortisol extraction, the significant interindividual differences observed suggest that any of the methods could be used effectively.

research Testosterone-like immunoreactivity in hair measured in minute sample amounts - a competitive radioimmunoassay with an adequate limit of detection

12 citations , December 2017 in “Scientific reports”

This study reported that pulverizing hair samples significantly improves the precision of testosterone measurement, with higher testosterone concentrations observed in men than in women.

research Hair Testing in Forensic Toxicology: Recent Insights From Root to Tip

November 2025 in “Wiley Interdisciplinary Reviews Forensic Science”

This article reviews recent advancements in forensic hair testing, emphasizing its growing use for detecting past substance exposure, identifying emerging trends like micro-segmentation and hair scanning, and proposing standardized procedures to improve reliability and application in forensic toxicology.

research Profiling steroid and thyroid hormones with hair analysis in a cohort of women aged 25 to 45 years old

6 citations , February 2022 in “European journal of endocrinology”

This study developed a validated method using UPLC-MS/MS to analyze 37 hormones in human hair, enabling broader hormonal profiling for identifying endocrine disorders.

research Development and Characterization of a Novel Polyherbal Dry Hair Shampoo Powder

February 2025 in “Journal of Pharma Insights and Research.”

In this study, researchers developed a novel dry shampoo powder using traditional Indian botanicals and found that it demonstrated effective cleansing properties, favorable physicochemical characteristics, and no adverse effects in animal safety evaluations, offering an eco-friendly alternative to synthetic shampoos.

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Community Join

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community Help with fin or min

in General 69 upvotes 1 year ago

The conversation is about deciding between using minoxidil alone, a topical combination of minoxidil and finasteride, or topical minoxidil with oral finasteride for hair loss treatment. The user is concerned about hair loss progression and is unsure about the effectiveness of the brands available.

community European finasteride difference

103 upvotes 6 months ago

Topical finasteride in Europe is often seen as less effective than oral forms, with users suggesting alternative application methods for better results. Many prefer oral finasteride due to cost and effectiveness.

community Fin/Dut + Min or Shave it off and get used to being bald, Hair System is a non-option.

16 upvotes 6 days ago

Hair systems can be effective but may cause anxiety and maintenance issues, while some prefer medications like finasteride and minoxidil despite potential side effects. Ultimately, personal confidence and character are more important than hair appearance.

community Why Dr. Arif Abid is the Best for Hair Loss

in Hair Loss Experts 6 upvotes 1 week ago

Dr. Arif Abid is highly recommended for hair loss treatment. Minoxidil, finasteride, and RU58841 are mentioned as effective treatments.

community Everyone needs to use their GPT-6 Astra credits on hair loss immediately

90 upvotes 1 week ago

Hair loss treatments like finasteride, minoxidil, and dutasteride are discussed, with some users expressing skepticism about finding a permanent cure. Current treatments are considered effective but not a permanent solution, and there's a call for advanced AI to focus on solving male pattern baldness.

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Learn

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learn Hair Fibers

cosmetic product that temporarily makes hair appear thicker

Do hair fibers really make thinning hair look fuller, or is it just an illusion? Hair fibers create an optical illusion of fullness but do not actually thicken hair.
How do you apply hair fibers correctly so they stay in place all day? Apply hair fibers to clean, dry hair and use a setting spray for better hold.
Can hair fibers be used along with medical treatments like minoxidil or finasteride? Yes, hair fibers can be used with minoxidil or finasteride without any chemical interaction.
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learn Hair Multiplication

extract, clone, and reinsert your own hair cells

learn Hair Transplant

Hair transplantation moves DHT-resistant follicles from a donor area (back and sides of the scalp) into thinning or bald areas. The transplanted hair is generally permanent, though surrounding native hair can keep thinning.

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Clinics

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Experts

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SMP Specialist
Hairo Fallas
Newark, NJ, United States

Hairo Fallas