research Percutaneous Penetration of Hair Dyes
Hair dyes penetrate the scalp very minimally, less than 1%.
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research Pigmented Contact Dermatitis from Topical Minoxidil 5%
Minoxidil 5% caused skin discoloration in a man using it for hair loss.
research Pharmacognostic Standardization of Lawsonia Inermis L. Leaf
The research helps standardize Henna leaf for safe use in traditional medicine and hair care.
research Fluorescence Microscopy Study of the Sorption of Cationic Polymers on Hair
Polymer JR400 sticks to hair but washes off with detergent.
research Electron Microscope Studies of Hair and Wool
Hair and wool have complex microscopic structures with microfibrils and varying cystine content.
research Biomechanical Properties of Human Hair with Different Parameters
Thicker hair is stronger, regardless of age, gender, or other factors.
research HaCaT Cell Proliferation Influenced by Melatonin
Melatonin affects skin cell growth differently based on how much and how long it's used.
research Metabolite Screening of Aromatic Amine Hair Dyes Using In Vitro Hepatic Models
The study investigated the potential oxidative metabolism of nine aromatic amine compounds used in hair dyes using human liver microsomes and hepatocytes. Toluene-2,5-diamine (TDA), p-aminophenol, m-aminophenol, p-methylaminophenol, N,N'-bis(2-hydroxyethyl)-p-phenylenediamine, and 1-hydroxyethyl-4,5-diaminopyrazole showed no oxidative metabolism. While oxidized metabolites of 4-amino-2-hydroxytoluene (AHT), 2-methyl-5-hydroxyethylaminophenol (MHEAP), and phenyl methyl pyrazolone (PMP) were detected, they did not exhibit NADPH-dependent covalent binding, indicating they were not reactive. Further studies in human hepatocytes showed conjugation but no oxidative metabolites for AHT, MHEAP, PMP, and TDA. The findings suggested that the tested hair dye ingredients did not undergo hepatic metabolism to form potentially reactive oxidized metabolites.
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 Repigmentation of Hair After Latanoprost Therapy
Latanoprost therapy potentially caused a woman's white hair to darken again.
research Laser Vein Therapy
Laser therapy is a safe, effective, and preferred treatment for spider veins.
research Hair Product Allergy: A Review of Epidemiology and Management
Hair product allergies are common, especially to hair dyes, and hairdressers are at higher risk.
research Emulsion Formulation of Camellia Sinensis and Allium Cepa for Alopecia Areata
The emulsion made from tea plant and onion extracts shows promise for treating hair loss.
research Frontal Fibrosing Alopecia Preceding the Development of Vitiligo: A Case Report
Hair loss condition FFA was seen before the appearance of skin depigmentation vitiligo in a patient.
research Hair Building Fibers Through the Dermoscope
Trichoscopy can help tell the difference between artificial hair fibers and other scalp artifacts.
research Mohs Surgery
Dr. Dzubow concluded that careful attention to detail is crucial for the success of Mohs surgery in treating skin cancer.
research Effects of Silicone Pretreatment on Oxidative Hair Damage
Silicone pretreatment protects hair from damage and reduces color fading without interfering with bleaching or dyeing.
research Aging of Hair
Hair ages due to genetics and environmental factors, leading to graying and thinning, with treatments available for some conditions.
research Aging of the Hair Follicle Pigmentation System
Hair grays due to oxidative stress and fewer functioning melanocytes.
research Hair Care and Hair Care Products
Bleaching damages hair, making it rougher and weaker.
research Evolution of Hair Treatment and Care: Prospects of Nanotube-Based Formulations
Nanotube-based hair treatments could improve hair health and growth, and offer long-lasting effects.
research Hair Care Practices and Structural Evaluation of Scalp and Hair Shaft Parameters in African American and Caucasian Women
African American women report more hair issues and use different hair care practices than Caucasian women, and have different hair and scalp characteristics.
research Skin Manifestations of Chronic Kidney Disease
Chronic kidney disease can cause skin problems that affect patient quality of life, and treating these conditions can improve outcomes.
research Chemical And Physical Treatments Damage Caucasian And Afro-Ethnic Hair Fibre: Analytical And Image Assays
Chemical and physical treatments like bleaching, dyeing, and UV radiation damage both Caucasian and Afro-ethnic hair.
research Therapeutics of Premature Hair Graying: A Long Journey Ahead
Effective treatments for premature hair graying still require significant research.
research Adverse Effects of Hair Care Products on Users
Hair care products can cause skin irritation and allergies.
research Plant Saponin Biosurfactants Used as Soap, Hair Cleanser, and Detergent in India
Plant saponins from Indian plants are natural, cost-effective, and safe for use in soaps, detergents, and hair care products.
research Comparison of Damage to Human Hair Fibers Caused by Monoethanolamine- and Ammonia-Based Hair Colorants
Monoethanolamine-based hair colorants can cause more damage to hair than ammonia-based ones.
research Hair Cosmetics
Hair care products clean, protect, style, color, and change hair structure.
research Application of an Enzymatic Method for Identifying Hair Treatments
The enzymatic method can effectively identify chemical treatments on hair.