research Vibrational Raman and IR Data on Brown Hair Subjected to Bleaching
Bleaching hair changes its structure and weakens it, which is important for understanding hair damage and creating treatments.
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research Chromatographic Methods for the Determination of Aminexil, Pyridoxine, and Niacinamide in a Novel Cosmetic Hair Preparation
Two new methods accurately measure Aminexil, Pyridoxine, and Niacinamide in hair products.
research Fiber-Safe Extraction of Red Mordant Dyes from Hair Fibers
Researchers developed a less damaging way to extract red dyes from wool using EDTA and DMF, preserving the fiber's strength for further analysis.
research Simultaneous RP-HPLC-DAD Determination of Dansyl Amino Acids in Chemically Treated Human Hair
A new method accurately measures amino acids in treated hair, showing bleaching reduces amino acids while protein treatments increase them.
research Synthesis and Validation of Functional Nanogels as pH-Sensors in the Hair Follicle
Scientists created tiny pH-sensing gels that can safely measure the pH levels inside hair follicles.
research A Nonrandomized Study of Trichoscopy Patterns Using Nonpolarized (Contact) and Polarized (Noncontact) Dermatoscopy in Hair and Shaft Disorders
Polarized dermoscopy is slightly better than nonpolarized for diagnosing hair disorders, with each method having its own strengths.
research Phenotypic Comparison of Caucasian and Asian Women With Polycystic Ovary Syndrome: A Cross-Sectional Study
Caucasian and Asian women with PCOS generally show similar symptoms, except Asian women have less chest hair.
research Fiber-Safe Extraction of Red Mordant Dyes from Hair Fibers
A new method extracts red dyes from wool without damaging it, although it slightly weakens the wool.
research HPLC-ESI-MSn Characterization of Phenolic Compounds, Terpenoid Saponins, and Other Minor Compounds in Bituminaria Bituminosa
Researchers found over 40 compounds in Bituminaria bituminosa, including many flavonoids and some with potential for medical and hair care uses.
research Anti-Inflammatory, Cyclooxygenase Inhibitory, and Antioxidant Activities of Standardized Extracts of Tridax Procumbens L.
Extracts from Tridax procumbens L. have strong anti-inflammatory and antioxidant effects and block inflammation-causing enzymes.
research 5α-Reductase Type 2 Gene Variant Associations with Prostate Cancer Risk, Circulating Hormone Levels, and Androgenetic Alopecia
A49T gene variant linked to higher prostate cancer risk, lower hormone levels, and slightly reduced balding risk.
research Evidence for Various Calcium Sites in Human Hair Shaft Revealed by Sub-Micrometer X-Ray Fluorescence
The research found two types of calcium in human hair, one that varies among individuals and another that is consistent across people.
research In Vitro Main Pathways of Steroid Action in Cultured Hair Follicle Cells: Vascular Approach
Steroids, particularly estrogens and 5α-reductase inhibitors, affect blood vessel-related hair growth processes in hair follicle cells.
research Effect of Bioclimatic Area and Season on Phenolics and Antioxidant Activities of Rosemary (Rosmarinus Officinalis L.) Leaves
Rosemary's antioxidant content changes with the climate and season.
research Pannexin 3 Regulates Skin Development via Epiprofin
Pannexin 3 helps skin and hair growth by controlling a protein called Epiprofin.
research Identification of a Cyclosporine-Specific P450 Hydroxylase Gene Through Targeted Cytochrome P450 Complement Disruption in Sebekia Benihana
A gene in Sebekia benihana, CYP-sb21, is needed for a specific reaction on the drug Cyclosporine A, which could be important for hair growth without affecting the immune system.
research Facial Preservation Following Extreme Mummification: Shrunken Heads
Shrunken heads retain some facial features and hair characteristics, allowing for limited individual identification.
research Determination of Finasteride and Its Metabolite in Urine by Dispersive Liquid-Liquid Microextraction Combined with Field-Enhanced Sample Stacking and Sweeping
New method accurately measures finasteride and M3 in urine, helping evaluate pharmacokinetics.
research Comparative Studies of Hair Shaft Components Between Healthy and Diseased Donors
Hair analysis can help identify specific minerals and amino acids linked to various diseases.
research Tectoridin Stimulates the Activity of Human Dermal Papilla Cells and Promotes Hair Shaft Elongation in Mouse Vibrissae Hair Follicle Culture
Tectoridin helps human hair cells grow and makes mouse hair longer, suggesting it could treat hair loss.
research Atypical Hippocampal Glutamate Receptor Coupled to Phospholipase D Controlling Stretch-Sensitivity in Primary Mechanosensory Nerve Endings Is Homomeric Purely Metabotropic GluK2
A special receptor in sensory nerve endings helps control how they respond to stretching.
research Interactions Between Damaged Hair Keratin and Juglone as a Possible Restoring Agent: A Vibrational and Scanning Electron Microscopy Study
Juglone from walnut extracts may help repair damaged hair.
research Hair Growth Promotion and Anti-Hair Loss Effects of Arabica Coffee Pulp Extracts Using Supercritical Fluid Extraction
Arabica coffee pulp extract may help prevent hair loss and promote hair growth.
research Quantification of Squalene and Lactic Acid in Hair Bulbs with Damaged Sheaths: Are They Metabolic Wastes in Alopecia?
Squalene may be a marker for certain types of alopecia.
research Biosynthesis of Dihydrotestosterone by a Pathway That Does Not Require Testosterone as an Intermediate in the SZ95 Sebaceous Gland Cell Line
Dihydrotestosterone can be made from dehydroepiandrosterone in skin cells without needing testosterone.
research Adrenal Steroid Precursors Exert Potent Androgenic Action in the Hamster Sebaceous Glands of Flank Organs and Ears
Certain adrenal hormones can strongly stimulate oil gland growth in hamster skin, similar to male hormones.
research New Progesterone Esters as 5α-Reductase Inhibitors
Some new progesterone derivatives are better at blocking testosterone conversion than a common drug.
![Synthesis of Spiro[cyclohexane-1,2'-[2H]indene] Derivatives as Inhibitors of Steroid 5α-Reductase](/images/research/d91300a7-4d66-4d2c-90ac-293b0dbc5ff5/small/21048.jpg)
research Synthesis of Spiro[cyclohexane-1,2'-[2H]indene] Derivatives as Inhibitors of Steroid 5α-Reductase
Compound 15a was effective in inhibiting 5α-reductase.
research Androgen Profiling by Liquid Chromatography–Tandem Mass Spectrometry in Healthy Normal-Weight Ovulatory and Anovulatory Late Adolescent and Young Women
The research found that anovulatory young women have higher androgen and hormone levels than those who ovulate, suggesting immature hormonal regulation rather than a specific condition.
research The First Syntheses of 16β-Chloro- and 16β-Bromo-Cyproterone Acetate
Scientists made two new chemicals that might help treat diseases caused by male hormones.