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research Penetration and distribution of three lipophilic probes in vitro in human skin focusing on the hair follicle
Medium lipophilic substances penetrate skin best, and adding ethanol can increase delivery to hair follicles.
research On Pathways for Small Molecules Into and Out of Human Hair Fibers
Dye enters hair at the edges of cuticle cells and penetrates more from water than alcohol-based solutions.
research Permeant lipophilicity and vehicle composition influence accumulation of dyes in hair follicles of human skin
Lipophilic dyes accumulate more in hair follicles when delivered with surfactant-propylene glycol solutions.
research Exploring a biological tissue from atomic to macroscopic scale using synchrotron radiation: example of hair.
Hair has unevenly distributed proteins and lipids, with lipids mainly in the cuticle and proteins in the cortex and medulla.
research Electronic Circular Dichroism Imaging (ECD i ) Casts a New Light on the Origin of Solid‐State Chiroptical Properties
The research found that the properties of solid-state Electronic Circular Dichroism (ss-ECD) are influenced by the orientation of local crystals, which could help in examining and mapping chiral materials like pharmaceutical ingredients.
research Cover Feature: Electronic Circular Dichroism Imaging (ECD i ) Casts a New Light on the Origin of Solid‐State Chiroptical Properties (Chem. Eur. J. 4/2022)
SR-ECDi helps better understand and map the chiroptical properties of solid chiral materials.
research Staining of human skin with RGB trichrome unveils a proteoglycan-enriched zone in the hair dermal sheath
A new staining method shows a special area in the hair's skin layer with lots of proteoglycans.
research Different localizations of drugs simultaneously administered in a strand of hair by micro‐segmental analysis
Drugs localize differently in hair strands based on their properties.
research Plant responses to shade
Plants change their growth in response to shade based on light signals detected by phytochrome.
research Analysis of keratin films as screening tools for predicting the efficacy of potential hair dyes
Translucent keratin films are better for testing hair dyes.
research News and Notices
The document discusses new cosmetic dermatology technologies, safety, robotic hair restoration, and upcoming courses on genomics and skin cancer management.
research High spatial resolution study of human skin using synchrotron infrared microscopy: application to the penetration of external agents
External agents penetrate skin more easily in areas with fewer lipids, especially through hair follicles.
research The distribution of Langerhans cells within the human hair follicle, and some observations on its staining properties with gold chloride.
research Untersuchungen der Fremdstoffbindung in permanenten Keratinozyten- und Melanozyten-Zelllinien sowie die Eignung von Primärkulturen aus humanen Haarfollikeln zur In-vitro-Messung der Fremdstoffaufnahme im Haar
Unpigmented keratinocytes absorb substances faster, while melanocytes bind more strongly to melanin.
research Long-term staining of live Merkel cells with FM dyes
FM dyes effectively stain Merkel cells for long-term observation.
research Analyzing the laser-light reflection from human hair fibers Part1: Light components underlying the goniophotometric curves and fiber cuticle angles
Hair color affects light reflection, with black hair having higher cuticle angles and lighter hair showing less specular reflection.
research Distribution and Localization of Hydrophobic and Ionic Chemical Groups at the Surface of Bleached Human Hair Fibers
Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.
research Laser for Hair Removal
Lasers are FDA-approved for permanent hair reduction, not removal, and more research is needed to improve treatments.
research Molecular heterogeneity of quiescent melanocyte stem cells revealed by single‐cell RNA ‐sequencing
Different types of resting melanocyte stem cells have unique characteristics and vary in their potential to become other cells.
research Qualitative investigation of fresh human scalp hair with full-field optical coherence tomography
Melanin density affects hair color, and this method can help in cosmetic assessments and diagnosing hair diseases.
research Beyond Spectral Similarity: How to Distinguish Polymorphs with Similar Solid‐State Circular Dichroism Anisotropy Spectra?
A new method using solid-state circular dichroism anisotropy can distinguish similar chiral compounds better than traditional techniques.
research The Localization of Dehydrogenase Activity and Sulphydryl Groups in Wool and Hair Follicles by the use of Tetrazolium Salts
INT effectively shows enzyme activity and protein groups in wool and hair follicles.
research Imaging of Photo-Damaged Hair with a Differential Phase Scanning X-Ray Microscopy
Sunlight and chemical treatments change hair's internal structure differently, needing specific care.
research STUDIES ON THE STAINING REACTION OF THE FLUORESCENT CONJUGATE OF GLOBULIN
Normal cells stain well with fluorescent globulin, but tumor cells do not.
research Organization of microfibrils in keratin fibers studied by X-ray scattering
The study improved understanding of keratin fiber structure by showing consistent microfibril diameter but varying distances and electron density profiles.
research Kinetics and Equilibrium of Solute Diffusion into Human Hair
Hair absorbs molecules differently based on their size, charge, and love for water, and less at higher pH; this can help make better hair products.
research THE APPLICATION OF PARTITION CHROMATOGRAPHY TO THE SEPARATION OF RARE EARTH ELEMENTS
PCOS causes hormonal imbalances and health issues like infertility and heart disease.
research Distributions of sulphur and other elements in human hair follicles
Sulphur in hair follicles increases from the bulb and then levels off, while other elements vary in distribution.
research Long-Term Removal of Unwanted Hair Using Light
Laser and light treatments can effectively remove hair long-term.