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The study found that a polymer treatment changes the charge on hair surfaces, making bleached hair smoother and less porous.

This study reports the development of a natural hair-coloring system using size-controlled ink particles from cuttlefish ink combined with chitosan, achieving darker and more uniform black coloration on hair than existing plant-based natural colorants, without the need for metallic mordants.

This article reviews the use of pigmented concealing powders as a viable cosmetic option for patients with alopecia, noting the potential for a more natural appearance compared to traditional hairstyling or hairpieces, but it presents no new clinical results.

This study introduced a novel graphene-based hair dye that is non-reactive, non-invasive, and eliminates toxic chemicals, while providing durable color, antistatic properties, and efficient heat dissipation, even after 30 washes.

This study developed a model showing that keratin elasticity in skin may be influenced by electrostatic and bridging interactions between keratin filaments, contingent on the balance of charges in the surrounding medium.

Hair coloring and bleaching can permanently break down hair protein and temporarily change its properties.

In this study, PEG and keratin scaffolds selectively influenced protein release rates based on charge and size, suggesting their potential for targeted delivery of protein therapeutics.

This study analyzed the geometric and electronic properties of baicalin conformers, finding that BCLa2TT and BCLa1TT conformers exhibit high stability in aqueous solutions and are favorable for interactions with positively charged species.

This study found that dimethylpabamidopropyl laurdimonium tosylate, a quaternary ammonium surfactant, adsorbs onto human scalp hair with kinetic and isotherm behaviors fitting specific models, changing hair fiber wettability from hydrophobic to hydrophilic.

This study found that particle affinity was stronger on healthy hair compared to damaged hair, with the deposition influenced predominantly by hydrogen bonding and electrostatic attraction, while larger particles had poorer deposition.

This study found that increasing the pH from 2.0 to 6.0 enhanced the binding of cationic solutes to hair keratin, driven primarily by hydrophobic and electrostatic interactions.

In this study, keratin‐based hydrogels incorporating calcium ions were developed to effectively deliver atorvastatin, showing potential for localized anti‐fibrotic therapy through controlled drug release and maintaining drug bioactivity in vitro, supported by thorough physicochemical and mechanical characterization.

This study found that cationic vesicles enhanced minoxidil skin retention and in vivo hair growth efficacy compared to other formulation types due to electrostatic interactions with the skin.

In this controlled study, a pulsed electrical field treatment significantly increased hair regrowth compared to baseline and the control group over 36 weeks, without observed side effects.

This study's molecular dynamics simulations suggest that electrostatic interactions mainly stabilize peptide binding to human hair keratin, with the protein's dielectric constant significantly affecting free energy calculations.

In this study, nanostructured lipid carriers for hair split-end repair showed similar efficacy regardless of charge, with negatively charged carriers exhibiting better stability over six months compared to positively charged ones.

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 review explores research on nanoformulations for enhancing the topical delivery of herbal medicines, noting potential benefits like improved bioavailability and sustained delivery, and emphasizes the need for safety and toxicity guidelines in developing these novel drug delivery systems.

In this study, researchers found that L-cysteine interacted electrostatically with anionic ions on the surface of keratin fibers in human hair, reducing the rate of disulfide bond disconnection at pH 9.0.

Hair fibers interact through classical forces, which are influenced by treatments and products, important for hair care and other applications.

This study observed that including cationic minoxidil particles in a shampoo facilitated notable hair growth promotion despite a negative surface charge after rinsing, likely due to ionic interactions with the skin.

This review discusses the potential for surface-modified nanostructured lipid carriers to enhance hair regrowth by improving drug absorption and stability, focusing on their use with agents like minoxidil and finasteride for hair loss treatment.

This study found that the stability of the coiled-coil structure in human hair keratin is maintained by ion-pairing and hydrophobic interactions, which are disrupted as pH approaches 7.0.

This study found that incorporating CTA2-BADG, a modified hair-rebonding compound, into damaged hair significantly improved surface morphology and tensile strength by using charge-conversion chemistry to enhance penetration into the hair shaft.

This study found that despite chemical differences, five different brands of reconstructive hair fibers all provided successful cosmetic results in disguising hair loss in patients.

This review highlights recent advances in the design of nanocarrier systems for transdermal drug delivery, detailing their potential to improve treatment precision for dermatologic conditions despite challenges like formulation stability and scalability.

This review examines new formulations for delivering 5-α-reductase inhibitors to improve targeted drug delivery in androgenetic alopecia, but reports no new clinical results.

In this study, desmopressin-loaded elastic liposomes (ODEL1) showed improved permeation and drug deposition across rat skin by altering the skin's cohesive energies and causing reversible changes on its surface.

This study systematically reviews the development and applications of drug-loaded nanofiber scaffolds in wound healing, highlighting challenges such as maintaining drug activity and achieving controlled release, while summarizing preparation methods and describing advanced drug delivery schemes.

This study reports a highly sensitive MEMS silicon-hair device that mimics hair follicle functions by detecting minimal forces and moments, including electrostatic attraction and surface tension of liquids.