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This article reviews methods for dissolving hair proteins and describes how solvents and molecules with hydrophobic groups interact with hair; it presents no new research findings.

Polisorbate 20 is not suitable for curl creams due to instability.

This study found that N‐AOHPA was particularly effective as a silicone emulsifier for improving the condition of damaged hair by preventing amino acid dissolution from bleached hair.

This study concluded that a hair emulgel formulation combining extracts from four medicinal plants demonstrated desirable characteristics of spreadability, viscosity, pH, and safety, making it effective, harmless, and economical for potential hair care use.

This study found that incorporating a block copolymer significantly alters the size and morphology of niosome drug delivery systems made of non-ionic surfactants and cholesterol, affecting their stability.

In this study, the use of two emollients significantly reduced itching severity in individuals with xerotic eczema, starting 30 minutes post-application, and improved skin moisture and lipid content over 14 days, while demonstrating good tolerance with few adverse events.

This study found that silicone oil-in-water nanoemulsions using nonionic surfactants can enhance silicone oil absorption on hair, suggesting a promising method for hair care applications.

This review explores the formulation, characterization, and applications of microemulsions, highlighting their potential for enhanced cutaneous drug delivery by improving bioavailability and enabling sustained release of both hydrophilic and hydrophobic drugs.

This study found that liposomes coated with cationic polymers, chitosan and Eudragit EPO, showed improved physicochemical stability and enhanced skin diffusion of aciclovir and minoxidil compared to uncoated liposomes.

This paper reviews the surface degradation of hair and describes how combining 18-MEA with specific surfactants can maintain hydrophobicity on bleached and weathered hair surfaces.

This study's simulations revealed the complex "onion-like" organization of a lipid nanoemulsion droplet containing vitamins A and E for skin delivery, showing distinct concentration patterns of these vitamins within different layers of the nanodroplet.

This study found that adding certain conditioning agents, including jojoba oil and lauryl PEG/PPG‐18/18 methicone, to ammonium thioglycolate straightening emulsions protected Afro-ethnic hair from protein loss and improved resistance to breakage.

In this study, BECD-treated wavy hair showed reduced undulation and improved straightening after drying, as BECD enhanced the contraction and rearrangement of molecular chains in non-keratin proteins, unlike untreated hair, which retained its wavy structure.

This source describes the potential benefits of a nanoemulgel delivery system for enhancing the use of lipophilic drugs, improving patient compliance, and expanding treatment options for various conditions, including acne, arthritis-related inflammation, and Parkinson's disease, while also offering sunburn protection in cosmetic applications.

This study explored the development of a self nanoemulsifying drug delivery system to enhance the solubility and oral bioavailability of exemestane HCl for breast cancer therapy.

In this study, the researchers developed an optimal emulgel formulation for treating androgenic alopecia, determining that a base with 0.3% Carbomer Ultraz 10, 0.1% potassium sorbate, and 0.2% triethanolamine offered the best properties for drug release, application compliance, safety, and stability.

This study found that combining lecithin reverse wormlike micelles with isopropyl myristate enhanced the skin permeability of a model hydrophilic drug, facilitated by interactions with sebum in hair follicles.

This study explored Black Sea shark liver oil-based emulgels, finding that the addition of borage oil (Gel 2) enhanced the anti-inflammatory and wound healing properties compared to shark liver oil alone (Gel 1) and a reference diclofenac gel, suggesting promising eco-friendly applications in dermatocosmetics.

This research outlines the potential of nanoemulgels as a superior alternative to conventional topical treatments, noting their ability to improve skin permeability, drug release, and therapeutic targeting, though challenges remain in formulation stability and consistency.

This study examined argan oil inclusion complexes with β-CD, finding that these complexes improve the antibacterial efficacy, uniformity, and mechanical performance of hair treatment formulations while enhancing the durability of bleached hair, suggesting their potential as stable and effective cosmetic ingredients.

This study evaluated the stability and capillary growth-stimulating activity of emulsions made with natural plant extracts and oils in vivo on guinea pigs, finding that specific hydrophilic/lipophilic balance and globule size contribute to a stable and effective formulation.

This study found that minoxidil solubilized in gelatin-containing microemulsions resulted in over 5% of the drug remaining in porcine skin, significantly more than the reference gel.

This study developed O/W hair mask emulsions with collagen hydrolysate, keratin, and natural oils, reporting that they are stable, physiologically acceptable for skin, creamy, non-greasy, and hydrophilic, with properties suitable for cosmetic applications in hair care.

This study found that cationic surfactant-based conditioning systems significantly reduce friction on hair fibers, improving wet and dry combability by forming a stable film layer on the hair’s surface, as verified by both instrumental and sensory evaluations.

In this study, researchers developed an emulgel formulation containing minoxidil for hair growth, using chitosan and fucoidan as gelling agents, achieving controlled drug release with 99.7% released by the 12th hour.

This study found that the optimum formula for chia seed oil nanoemulsion hair serum, composed of 33.52% Tween 80 and 46.48% propylene glycol, meets good physical characteristics and stability requirements.

This study found that cationic surfactant-based conditioning systems significantly improve hair combability by forming a stable low-friction film on hair surfaces, reducing friction and enhancing sensory performance compared to standard systems, as confirmed by both instrumental and sensory evaluations.

This study examined the effects of six surfactants on hair and scalp, finding varying irritation levels and impacts on protein denaturation and scalp turnover time, with AMT suggested as a good detergent.

This study found that high concentrations of dimethyl sulfoxide are needed to cause significant swelling in hair fibers, though the swelling is reversible, unlike the effects on skin.