4 citations
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November 2011 in “Archives of Dermatology” This study describes a simple, noninvasive hair counting method used in a hair growth prevention trial, assessing its reliability and validity.
January 2026 in “Psychoneuroendocrinology” Self-collected hair samples can measure stress but may need adjustments for accuracy.
33 citations
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January 2017 in “Conservation physiology” This study found that measuring reproductive hormone levels in brown bear hair may effectively support non-invasive genetic sampling, though larger samples or more sensitive techniques are needed for broader application.
7 citations
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September 2024 in “Scientific Reports” This study suggests that sebum samples can be effectively stored and transported with less stringent requirements than liquid samples, making them suitable for remote or at-home collection before clinical analysis.
February 2024 in “Research Square (Research Square)” This research found that heavy metal concentrations of arsenic, lead, cadmium, and iron were significantly higher in human hair samples from 100 years ago compared to today's levels in southern Poland, with a median decrease of 69–95%.
January 2021 in “American Journal of Applied Sciences” This study used in-lab hair samples to show that cut hairs found at a crime scene and on a suspect can be matched to confirm they were from the same individual.
This study reports that hair samples can be used to track chronic hormone levels, revealing stress, reproductive, and sodium regulation patterns in wildebeest related to environmental factors.
March 2026 in “International Journal of Pharmaceutics and Drug Analysis” This study developed and validated a simple, cost-effective UV–Visible spectrophotometric method for estimating finasteride in pharmaceuticals, demonstrating good linearity, accuracy, precision, and sensitivity according to ICH guidelines, making it suitable for routine quality control.
17 citations
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March 2021 in “Expert Opinion on Biological Therapy” This review analyzes the impact of different preparation methods for platelet-rich plasma, human follicles stem cells, and adipose-derived stem cells on hair regrowth and wound healing, but reports no new results; the authors emphasize convincing evidence of positive outcomes despite protocol variability.
7 citations
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November 2013 in “Pediatric and Developmental Pathology” This retrospective review of hair samples from pediatric patients indicated that microscopic hair examination might be a useful first-line investigation for diagnosing various genetic conditions.
3 citations
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January 2018 This study formulated an amla oil preparation according to Iranian traditional medicine and found it to have proper physicochemical and microbial quality, suggesting potential for hair loss treatment pending clinical trials.
1 citations
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October 2023 in “PloS one” This study found that testosterone concentrations in hair samples were moderately stable over three months, with cosmetic treatments like coloring increasing testosterone levels, while natural hair color in untreated hair did not affect testosterone measurements.
January 2025 in “International Journal of Dermatology Research” In this study, a herbal preparation inhibited the conversion of testosterone to DHT and its binding on hair roots in vitro, suggesting potential as an alternative treatment for androgenic alopecia without the safety concerns associated with finasteride.
January 2023 in “Austin Journal of Obstetrics and Gynecology” This study found that in a sample of girls and adolescents aged 15–24 years, the prevalence of PCOS was 22.5% according to the Rotterdam criteria.
19 citations
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August 2019 in “Seminars in Plastic Surgery” This review explains the biology and preparation of platelet-rich plasma and discusses its clinical applications in plastic surgery, but reports no new findings.
June 2026 in “Frontiers in Bioengineering and Biotechnology” This review outlines the transition from simple hair follicle organoids to immune-competent microphysiological systems, addressing limitations in replicating native hair follicle immune features and discussing their applications in disease modeling and regenerative medicine.
28 citations
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August 2018 in “BMC genomics” This study found that the DNA methylation status of skin samples from cashmere goats was higher during the telogen stage compared to the anagen stage, identifying genes potentially important for hair follicle development and growth.
10 citations
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September 2020 in “Metabolites” This study found that metabolite levels in hair samples differ significantly by hair color and segment, leading to recommendations for best practices in hair metabolomic studies.
September 2021 in “Rumphius Pattimura Biological Journal” This study reports varying levels of potassium and iron in honey samples, contributing to the understanding of mineral content in honey.
10 citations
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January 2012 in “Journal of Biological Macromolecules” This study found that keratin film from human hair samples responded to damage from UV, bleaching, perming, and thermal treatments, making it a useful model for evaluating hair damage in product development.
2 citations
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November 2008 in “Industrial & Engineering Chemistry Research” This study found that the presence of benzeneseleninic acid in commercial anhydride samples lowered the reaction rate during the oxidation of a finasteride intermediate compared to pure anhydride.
1 citations
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May 2024 in “PLoS ONE” This study found that storing horse hair follicles in RNAlater® at cool or room temperature for up to a week did not affect RNA integrity, suggesting it allows for flexible sample transport without immediate freezing.
December 2021 in “International research journal of pharmacy” This study evaluated the physicochemical properties of Neelibhringadi keratailam and found significant variations in market samples compared to a prepared sample, indicating potential quality control issues.
434 citations
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October 2003 in “PTR. Phytotherapy research/Phytotherapy research” This review discusses the use of natural products in cosmetic preparations for skin and hair care, but reports no new research results.
5 citations
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July 2019 in “Atlas of the Oral and Maxillofacial Surgery Clinics” This article discusses challenges and limitations of using simple tissue mechanics for repairing head and neck skin defects in trauma and does not report new findings; it highlights potential problems with routine methods.
1 citations
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August 2020 in “Journal of The American Academy of Dermatology” This letter discusses the variability in platelet-rich plasma preparation for androgenetic alopecia treatment and highlights that different methods yield varied platelet concentrations but not significant differences in growth factor secretion per platelet.
September 2023 in “Jurnal MIPA (edisi elektronik)” This study formulated and evaluated the physical stability of hair tonic preparations using lime extract (Citrus aurantifolia) at varying concentrations. The researchers found that the tonics exhibited good physical stability, as indicated by meeting Indonesian National Standards, even after undergoing temperature cycling tests.
January 2022 in “Healthy Tadulako Journal” This study found no difference in the physical stability of hair tonic preparations made from sansevieria leaves extract, regardless of whether maceration or soxhletation methods were used.
6 citations
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July 2005 in “Farmaco” This study developed a micellar electrokinetic capillary chromatography method for determining minoxidil in Rogaine and generic products, offering a simple and efficient alternative to HPLC.
4 citations
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June 2021 in “Scientific Reports” This study found that examining hair morphology provides deeper insights than classification, suggesting a potential population stratification artefact between hair curvature and cross-sectional shapes in the examined admixed African-European sample.