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research Testing for GHB in Hair by GC/MS/MS after a Single Exposure. Application to Document Sexual Assault

158 citations , January 2003 in “Journal of Forensic Sciences”

This study demonstrates that a single exposure to GHB during a sexual assault can be detected by analyzing hair segments collected about one month after the incident.

research Ocfentanil testing in hair from a fatality case: Comparative analysis of a lock of hair versus a single hair fiber

1 citations , July 2021 in “Forensic science international”

This study found that segmental single hair analysis produced ocfentanil concentration profiles similar to those from hair lock analysis, supporting its use in cases with limited samples.

research Human Hair as a Testing Substrate in the Era of Precision Medicine: Potential Role of ‘Omics-Based Approaches

1 citations , December 2018 in “IntechOpen eBooks”

This review discusses the potential of using human hair proteomics for non-invasive diagnostic and forensic applications but reports no new results; the authors highlight areas needing further research.

research Workplace Drug Testing Using Hair Samples

1 citations , August 2006 in “International forensic science and investigation series”

Hair testing is a reliable method for detecting workplace drug use when done with proper sample preparation and confirmation.

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.

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Community Join

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community Free hair care testing for UK men — Sons (Biotin / Thickening Clay)

in Treatment 4 months ago

Sons offers free Biotin capsules, Thickening Clay, or Conditioner to UK men for hair care testing. Interested individuals can apply online to receive these products.

community Self-testing if creatine speeds up hair loss (while on treatment!)

in Research/Science 40 upvotes 1 year ago

Creatine may increase DHT levels, potentially affecting hair loss in some individuals, but opinions vary. Some users report hair loss while on creatine, while others see no effect, especially when using treatments like finasteride, minoxidil, and microneedling.

community Is trichogram a good thing for testing genetic hair loss

2 upvotes 6 months ago

A dermatologist checked for hereditary hair loss using blood tests and plans to perform a trichogram. The user had slightly low Vitamin D3 levels, and the trichogram may help confirm androgenetic alopecia.

community Micronutrient testing, deficiencies, etc.

4 upvotes 4 years ago

Micronutrient testing and deficiencies related to hair loss, particularly androgenetic alopecia (AGA). Discussion includes the impact of iron, selenium, zinc, copper, folate, B12, vitamin E, vitamin D, amino acids, and fatty acids, alongside treatments like dutasteride or finasteride.

community NW5.5 testing stack of most common "alternative" treatments and methods

7 upvotes 5 months ago

A 43-year-old male with advanced hair loss is experimenting with alternative treatments, including red light therapy, microneedling, scalp massages, an oil mix, and ketoconazole shampoo, after previously experiencing side effects from finasteride and minoxidil. He noticed some minor changes with red light therapy but remains skeptical about significant improvement.

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Clinics

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Hair Loss Treatments
Cosmocare Dermatology, PRP Hair Face Treatment, STD Testing CenterDubai · AE

Learn

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learn Vitamin D

vitamin you should probably be taking for general health might also help your hair a little

How can I tell if my hair loss is linked to low Vitamin D levels? Hair loss may indicate low Vitamin D levels, but testing is needed for confirmation.

learn sh-Polypeptide-7

Are there any safety concerns or allergic reactions associated with sh-Polypeptide-7 in topical hair products? There are no published human studies on sh-Polypeptide-7 itself, so its safety is unestablished; research on cosmetic peptides as a class reports low irritation and rare allergy, and dermatologists advise patch testing a new scalp product.

learn Hair Multiplication

extract, clone, and reinsert your own hair cells

learn GHK-Cu

GHK-Cu: What is the most recommended product? No GHK-Cu product has published human trial evidence for hair loss, so none can be ranked on efficacy; what separates products is formulation quality — purity, stability and third-party testing — and the FDA lists GHK-Cu among bulk substances that may present significant safety risks in compounding.

learn Beta Polypeptide

learn Neem Oil

natural substance from Neem tree with medicinal and pesticidal properties

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.

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