research Dyeing Regions of Oxidative Hair Dyes in Human Hair Investigated by Nanoscale Secondary Ion Mass Spectrometry
Hair dye colors mainly target melanin granules in black hair.
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research Mapping Penetration of Cosmetic Compounds into Hair Fibers Using Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS)
Different oils penetrate hair differently; monounsaturated oils like olive oil penetrate better than polyunsaturated oils.
research Secondary Ion Mass Spectrometric Investigation of Penetration of Coconut and Mineral Oils into Human Hair Fibers: Relevance to Hair Damage
Coconut oil can penetrate hair better than mineral oil, potentially protecting against damage.
research Structural Analysis of the Outermost Hair Surface Using TOF-SIMS with Gas Cluster Ion Beam Sputtering
The hair's outermost surface has multiple layers of lipids and proteins.
research Copper and Calcium Uptake in Colored Hair
Hair coloring increases copper and calcium uptake, damaging hair and reducing shine.
research ToF-SIMS Characterization of the Lipid Layer on the Hair Surface: The Damage Caused by Chemical Treatments and UV Radiation
Chemical treatments and UV radiation severely damage the lipid layer on hair.
research Investigation of Human Hair Using ToF-SIMS: From Structural Analysis to the Identification of Cosmetic Residues
The conclusion is that a new method can identify cosmetic residues on hair and match them to their products.
research Penetration of Cationic Conditioning Compounds into Hair Fibers: A TOF-SIMS Approach
The study found that certain conditioning compounds can penetrate hair and potentially improve its resistance to damage.
research Biomimetics Through Bioconjugation of 16-Methylheptadecanoic Acid to Damaged Hair for Hair Barrier Recovery
16-MHA can restore the barrier and moisture of damaged hair, making it similar to undamaged hair.
research Novel Insights Into Ascorbic Acid Skin Permeation
The best way to apply vitamin C to the skin is with a nanostructured lipid carrier formulation.
research Investigation of the Damage on the Outermost Hair Surface Using ToF-SIMS and XPS
Bleaching hair causes significant damage by breaking down proteins and fatty acids.
research Improved Forensic Hair Evidence for Drugs of Abuse by Mass Spectrometry
Forensic hair analysis for drugs is now more reliable and accurate.
research High Resolution Full Scan Liquid Chromatography Mass Spectrometry Comprehensive Screening in Sports Antidoping Urine Analysis
The method effectively detects banned substances in urine for sports antidoping.
research Distribution of Glycolipid and Unsaturated Fatty Acids in Human Hair
Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.
research Investigation of Aging Effects in Human Hair Using Atomic Force Microscopy
Aging makes hair thinner and rougher, with less clear edges.
research Extractives of Cercidiphyllum Japonicum Twigs: Isolation and Structural Elucidation of a New Galloylflavonol Glycoside, Anomeric Tannins and Flavonoids
Scientists found a new natural compound and other known compounds in Cercidiphyllum japonicum twigs, which might be useful for medicine.
research A Review on Forensic Toxicological Analysis of Drugs in Hair Using Various Instrumental Techniques
Hair analysis is better than urine and blood for detecting past drug use.
research Exploring the Effects of Wetting and Free Fatty Acid Deposition on a Hair Fiber Surface Model Incorporating Keratin Associated Protein 5-1
Water and fatty acids affect hair's surface differently based on hair damage, and models can help understand hair-cosmetic interactions.
research Hair Cosmetics: Dyes
Hair dyes can change hair color temporarily or permanently but may cause side effects like skin reactions and hair damage.
research Alterations in Transcriptome and Antioxidant Activity of Naturally Aged Mice Exposed to Selenium-Rich Rice
Eating selenium-rich rice improved antioxidant activity and signs of aging in mice.
research Structure of Intermediate Filament Assembly in Hair Deduced from Hydration Studies Using Small-Angle Neutron Scattering
Hair's internal fibers are arranged in a pattern that doesn't let much water in, and treatments like oils and heat change how much water hair can absorb.
research Distribution Analysis of Triglyceride Having Repair Effect on Damaged Human Hair by TOF-SIMS
Hydrogenated palm oil repairs and conditions damaged hair by preventing swelling.
research The Chemistry Mechanism of Hair Dyes
Permanent hair dyes use chemicals that react with hydrogen peroxide to create color.
research Uses of Onion (Allium Cepa L.) and Aloe Vera (Aloe Barbadensis Miller) Post Hair Dye Treatment
Onion and Aloe vera can help protect hair from damage caused by hair dyes.
research Investigation of Hair Dye Deposition, Hair Color Loss, and Hair Damage During Multiple Oxidative Dyeing and Shampooing Cycles
Repeated dyeing and shampooing cause hair color loss and damage.
research Known and Unknown Features of Hair Cuticle Structure: A Brief Review
The hair cuticle is made of tough proteins that protect the hair, but more research is needed to fully understand its structure.
research Hair After Death
research Impact of Hair Damage on the Penetration Profile of Coconut, Avocado, and Argan Oils into Caucasian Hair Fibers
Different oils affect hair flexibility and strength, with their impact varying on whether hair is virgin or bleached.
research Types of Hair Dye and Their Mechanisms of Action
Hair dyes vary in how long they last and how deeply they penetrate hair.
research Degradation of Hair Surface: Importance of 18-MEA and Epicuticle
18-MEA and cationic surfactants can restore and maintain hair's hydrophobic nature, improving its beauty and feel.