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This review explores the potential of targeted topical drug delivery to hair follicles for treating conditions like acne and hair loss but reports no clinical results, emphasizing the need for more research.

This review highlights that synthetic biodegradable polymers like PVA, PCL, PLA, PLGA, PU, and PEO/PEG can address the limitations of natural polymers in wound healing, offering improved mechanical properties and slower degradation, thereby enhancing their application as wound dressings.

This review discusses the chemical processes involved in hair styling and straightening and reports no new results; the authors highlight pregnancy safety with hair treatments during pregnancy.

New retinoids are effective for various skin conditions and are being developed to have fewer side effects.

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, 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.

The eucalyptus oil system improved skin delivery of hormones, but safety concerns remain.

This study suggests that nanotechnology-based drug delivery systems can improve the targeted, sustained delivery and stability of dermatological treatments, potentially leading to better outcomes and reduced side effects for various aesthetic skin conditions, though further clinical trials are needed to confirm these benefits.

This review discusses nanoparticle-based wound-healing materials, detailing their benefits, limitations, and recent advancements, and emphasizes the need for further understanding to enhance therapeutic outcomes.

This review explores the potential, challenges, and recent advancements of dissolving microneedles in drug delivery, summarizing their varied applications and current limitations without providing new clinical results.

This review discussed the potential of multifunctional photoresponsive hydrogels for wound regeneration, highlighting various types prepared with diverse photosensitizers and photothermal/photodynamic agents, and explored their role in modulating bacterial microenvironments to inhibit infection and promote healing.

In this study, hair damaged by permanent dye showed signs of recovery over time, with near complete restoration to its original state after eight weeks.

This study found that modern styling cosmetics can significantly alter hair structure through changes in interfacial chemistry and cohesion, particularly when applied to already damaged hair.

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 high-charge-density cassia HPTC improves deposition efficiency and conditioning benefits in shampoos compared to quaternized guar, suggesting its potential as an alternative or adjunct conditioning agent.

This article reviews the roles and types of surfactants and ingredients in modern shampoos, discussing their contributions to cleansing, conditioning, and cosmetic effects, but reports no new experimental findings.

This study evaluated a new anti-baldness product, IPSTiC patch hair, designed to treat androgenetic alopecia, and reported that it effectively inhibits NO radical and 5α-reductase activity while maintaining safety and stability, suggesting its potential for topical use.

This narrative review found that skin boosters, including hyaluronic acid and other agents, improve skin hydration, elasticity, and texture with favorable safety, though evidence is limited by study heterogeneity and lacks standardized protocols, suggesting a need for further clinical research.

This study found that polymers significantly improved the chemical and microbial stability of steroid hormones in liposome formulations over eight weeks, with finasteride showing the highest diffusion rate.

This study concluded that adding polymeric conditioning actives to shampoos improved color retention in permanently dyed hair, while additional cationic dyes at certain pH levels weakly dyed the hair directly.

This study found that high-charge-density cassia HPTC improves deposition efficiency and conditioning benefits in shampoos compared to quaternized guar, suggesting its potential as an alternative or adjunct conditioning agent.

This review assesses the benefits and limitations of various supramolecular hydrogels, including polymeric and peptide-based types, for wound healing, but reports no new clinical results.

This study found that novel biodegradable nanocarriers with highly hydrophobic cores significantly increased the solubility and sustained release of hydrophobic drugs and dyes, showing promise for drug delivery applications.

This review summarizes numerous studies on adhesive hydrogels with natural antibacterial agents for wound dressings, highlighting their potential as effective treatments with strong antibacterial properties, biocompatibility, and mechanical performance, while minimizing reliance on antibiotics.

In an animal study, researchers observed that a Chromolaena odorata layered-nitrile rubber transdermal patch significantly improved wound contraction, protein, hexosamine, and uronic acid levels, and collagen deposition in healing excision wounds in rats compared to a control group with an empty patch.

This review discusses recent advancements in developing delivery systems for small interfering RNA (siRNA) to treat skin conditions, highlighting innovations like liposomes, dendrimers, cell-penetrating peptides, and spherical nucleic acid nanoparticles designed to overcome challenges of skin permeability and degradation.

This article reviews various strategies, primarily developed by the Turin University Pharmaceutical Technology group, for increasing entrapment efficiency of hydrophilic molecules in nanoparticulate systems and reports no clinical results.

This review discusses various nanotechnology-based strategies for managing melasma and reports no new clinical results, highlighting the potential of innovative drug delivery systems in treating hyperpigmentation.

This review discusses hydrogel-forming microneedles for non-invasive drug delivery in dermatology and reports no new clinical results, emphasizing their promise in improving treatment adherence and patient comfort.

Several companies launched new hair care ingredients in 2011 to improve conditioning, color retention, combability, and heat protection.