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The document describes a method for preparing hair for microscopy by embedding it in plastic, cutting it, and storing it cold before imaging.

This study determined that caffeine content in anticellulite gels was between 0.7% and 1.7%, and about 1.0% in hair-care products.

This review highlights the importance of standardizing pre-analytical procedures for collecting and extracting samples from uncommon biological specimens like breast milk and sweat in clinical metabolomics, to enhance diagnostic and biomarker discovery efforts while minimizing contamination and bias.

This review outlines a systematic method for diagnosing hair loss and presents no new findings; the authors emphasize the importance of biopsy in cicatricial alopecia cases.

This review presents evidence that correlations exist between hair mineral imbalances and various diseases, though inconsistencies in results highlight the need for standardized preparation methods.

This review highlights that human hair is a valuable biological matrix for clinical and toxicological analyses, demonstrating its applicability in detecting various active substances from different pharmacological classes.

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

This study developed and validated a simple and cost-effective spectrophotometric method to accurately determine Aminexil in cosmetic formulations containing niacinamide and pyridoxine.

This systematic review found that topical adenosine may increase hair thickness and density while reducing hair loss, but the strength of evidence is low due to issues with trial design and sample size.

This study reports an improved method for determining blood type from human hair using immunohistochemistry.

This study reported that a new extraction technique using cautery and forceps is a simple, effective treatment and diagnostic procedure for eruptive vellus hair cysts, with no recurrence after 4 months.

Three new techniques simplify and improve the preparation of tissue samples for skin cancer surgery.

In this study, using a 16G epidural needle for preparing the recipient area in hair implantation minimized grafts popping out and resulted in a natural-looking hairline with satisfactory graft survival.

This study details a step-by-step protocol for preparing mammalian skin samples, including hair follicles, for spatial transcriptomics to overcome challenges inherent in applying this technique to the skin.

This study examined argan oil inclusion complexes with β-CD, finding that these complexes improve the antibacterial efficacy, uniformity, and mechanical performance of hair treatment formulations while enhancing the durability of bleached hair, suggesting their potential as stable and effective cosmetic ingredients.

This study reported that keratin films lacking keratin-associated proteins showed different appearance, structure, and color deposit properties compared to conventional keratin films, suggesting potential for evaluating hair damage.

In this study, PRP treatment for scalp hair restoration, combined with finasteride and minoxidil, resulted in reduced hair fall, stronger hair, and satisfactory regrowth in patients, with a satisfaction level of up to 90%.

This article outlines a protocol for scanning electron microscopy of murine skin and primary keratinocyte monolayers, providing a guide for sample preparation and examination.

This study found that dutasteride-loaded nanostructured lipid carriers coated with a stearic acid-chitosan oligomer are stable, less cytotoxic, and suitable for topical delivery to promote hair growth.

This article reviews the steps and methods involved in preparing skin tissues for three-dimensional volumetric imaging, highlighting its potential to provide detailed insights into skin structure not possible with traditional 2D histology, but reports no new findings.

Collagen CLR and placenta extract may help treat diffuse hair loss.

This study demonstrates a sample preparation method for wool follicles that allows for clear keratin labeling and ultrastructural preservation in microscopy, reducing common artefacts from conventional fixation techniques.

This paper explores the social challenges individuals with medical hair loss face when using wigs, highlighting the complex identity management involved and the social obligations to disclose wig use to close ones.

This study found that cortisol concentrations were significantly higher in hair samples with follicles compared to those without, suggesting potential confounding in stress assessments using different hair sampling methods.

Platelet-rich plasma shows potential for hair growth, but more research is needed to determine the best preparation method.

This study found that platelet-rich plasma prepared using a double-spin method may be more effective for treating female pattern hair loss than single-spin PRP, although VEGF concentration was unaffected by either preparation method.

This review highlights how forensic drug analysis in hair using modern instrumental techniques offers advantages such as easy sample collection and chronological tracking of drug use, emphasizing its value for law enforcement and other applications.

This study examined noninvasive tissue samples, including buccal swabs, hair follicles, saliva, and urine cell pellets, and found hair follicles and urine cell pellets promising for transcriptomic and clinical analyses due to their sample quality and performance in disease-relevant applications.

In this research, an optimized protocol was developed for dissociating human scalp tissue to produce high-quality single-cell suspensions suitable for single-cell RNA sequencing, aimed at studying the transcriptomics of human hair follicles.

This pilot study suggests that a new preparation of platelet-rich plasma gel may improve symptoms and tissue regeneration in patients with en coup de sabre scleroderma, though further trials are needed to clarify its role.