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This review discusses methods to hide or reduce the appearance of hair loss using hair prostheses and camouflaging agents, and reports no new clinical results.

This study reported that thymol-loaded nanoparticles showed promise as an antibiotic-free treatment for acne by effectively targeting the infection without disrupting healthy skin microbiota.

A new method was developed to detect pesticide residues on apples without damage.

This study reviewed the challenges of delivering nucleic acids for gene therapy, highlighting the limitations of non-viral vehicles and exploring bioinspired strategies using cell membrane camouflage for improved delivery efficacy.

This study evaluated novel steroid compounds for their ability to inhibit 5α-reductase, showing that compound 16a significantly reduced rat prostate weight more than epristeride and exhibited excellent in vitro inhibitory potency, indicating its potential as a lead candidate for further benign prostatic hyperplasia drug research.

The hydrogel helps heal seawater-immersed wounds by reducing infection and inflammation.

Hair movement can indicate hair quality and health.

This study demonstrates that pH-responsive nanogels designed with comb-like anionic polymers significantly improved oral delivery of the chemotherapy drug camptothecin, enhancing drug stability in acidic conditions and release in the intestines, with increased cellular uptake and cytotoxic effects against colorectal carcinoma cells.

This study reported that solid lipid nanoparticles of finasteride decorated with chitosan enhanced drug retention in skin layers, suggesting potential application in treating androgenic alopecia and benign prostate hyperplasia with fewer side effects.

This study found that treating human hair with vitamin E and γ-oryzanol significantly reduced UV-B-induced structural damage, with γ-oryzanol providing greater protection, especially in female hair samples. The findings highlight these compounds' potential as cost-effective solutions for preserving hair integrity against UV damage.

In this study, researchers developed a polyphenol–amino acid nanozyme capable of controlled hydrogen peroxide delivery, which effectively activated hair follicles via oxidative stress in a mouse model, suggesting a potential non-pharmacological treatment for alopecia.

This study reports that novel nanofibrous dressings combining polylysine and tannic acid significantly reduce bacterial burden, support wound healing, and exhibit strong anti-inflammatory effects in infected full-thickness wounds, promoting near-complete closure and skin regeneration within two weeks.

This study found that Silibinin-loaded polymeric micelles significantly protected human hair from UV-B induced structural and chemical damage by preventing increases in roughness and reducing protein loss.

This study found that prevelex coatings on microwell array devices enhanced the formation of uniform cell spheroids and enabled the development of hair follicles in tissue engineering applications.

This study suggests that polymersomes decorated with chitosan improve the transdermal delivery of finasteride, providing an alternative drug delivery system with higher drug retention in the skin.

Hair movement can indicate hair quality and health.

In this study, melatonin-loaded Pickering emulsions stabilized by chitosan-dextran sulphate nanoparticles and enhanced with lecithin showed improved photostability, antioxidant activity, and follicular delivery in androgenic alopecia-affected rats, potentially rivaling commercial minoxidil for hair loss treatment.

This study found that a double-crosslinked hydrogel using GelMA and sulfhydrylated chitosan showed promising results in healing full-thickness skin wounds in rats by accelerating tissue repair and promoting collagen and blood vessel formation.

This study found that ALRV5XR showed the highest efficacy for terminal hair regrowth in both men and women with androgenetic alopecia, with less treatment resistance compared to other therapies.

This review highlights recent advances in chitosan-based nanoparticles (CS NPs) for drug delivery, discussing their modifications, preparation methods, production with organic and inorganic materials, and their latest implementations in the field, emphasizing the role of CS NPs in improving drug transport and release properties.

This study developed granular hydrogels with reversible interparticle cross-linking, finding they offer high mechanical stability and enhance cell recruitment, making them promising for injectable and 3D printable scaffolds in tissue engineering and therapeutic delivery.

This review highlights the potential of self-powered nanogenerators in revolutionizing biomedical devices by using biomechanical or environmental energy, focusing on applications like regenerative hair growth, drug release patches, and electronic skin while evaluating challenges such as energy efficiency and biocompatibility.

This study found that a hair-coating polyphenol complex significantly enhanced the mechanical strength, UV protection, and antistatic properties of damaged hair, suggesting potential benefits for hair treatment.

This study developed a novel hair-straightening shampoo incorporating a polyphenol–inorganic sulfate redox agent, finding that it effectively straightens hair while enhancing strength and reducing damage due to its protective polyphenol coating.

In this study, reducing agents like ammonium thioglycolate, L-cysteine, and sodium sulfite in shampoo effectively decreased hair flyaway and frizz without causing damage, as no critical hair damage was observed in structural and tensile strength assessments.

This study developed a biocompatible hair-dyeing technology using a dark polyphenol complex, which demonstrated effective hair coating, improved mechanical strength, and strong antioxidant properties while maintaining high cell viability.

This study highlights the potential of chitosan nanoparticles to improve cannabidiol solubility and delivery for treating alopecia, suggesting a promising approach for transdermal delivery of hydrophobic compounds.

This review reports on the current state and potential of solid lipid nanoparticles for drug delivery, emphasizing their safety, biocompatibility, and ease of production, and highlights challenges in translating them to clinical practice, including active clinical trials.

5α-reductase inhibitors, like Finasteride and Dutasteride, help manage benign prostatic hyperplasia.