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This review discusses the properties and bioextraction methods of chitin and chitosans, emphasizing their potential use in eco-friendly cosmetic manufacturing and reports no new experimental findings.

This review examines the roles and benefits of chitosan in cosmetics and oral hygiene, highlighting its potential in the cosmeceutical market, but it reports no new results.

This review discusses the physicochemical and biological properties of chitin and chitosans, their bioextraction methods, and their applications in advanced cosmetics and biomedical products, but reports no new clinical results.

Lower acetylation makes chitin nanofibers thinner and more suitable for various uses.

This article explores the potential of chitin nanofibrils as a bioactive polymer for skin applications by examining their hydrophilic properties and effects on cell behavior, but presents no new experimental results.

In this study, researchers created nanowhiskers from crab shell-derived nanochitin that self-assembled into vibrant structural colors within a film. The material, sensitive to environmental changes, shows potential as a food freshness indicator and a sustainable dye for cosmetics due to chitin's biocompatibility.

This study found that chitin nanofibrils prepared by the aqueous counter collision process exhibited superior emulsifying properties for stabilizing oil droplets in Pickering emulsions compared to cellulose nanofibrils.

In this study, researchers tested detachable microneedles with chitin derivatives in a mouse model of androgenic alopecia, finding them to induce greater hair regrowth than 5% minoxidil, while also positing these materials as safe and cost-effective alternatives for hair loss treatment.

This study suggests that proteins CHI3L1 and CXCL5, secreted by recovery-state dermal papilla cells, may promote hair growth by stimulating the proliferation of outer root sheath cells.

This study found that combining mesenchymal stromal cells from adipose tissue and hair follicles with soy protein and β-chitin scaffolds significantly reduced wound healing time and improved skin regeneration in vivo.

This study found that chitosan and surface-deacetylated chitin nanofibrils promoted hair growth in mice and increased fibroblast growth factor-7 production in human follicle dermal papilla cells.

This study reports that transplantation of an ESCs-collagen-chitin biomimetic membrane leads to successful in situ skin regeneration, including hair follicle cell proliferation and formation of dermatoglyphs, in nude mice with full-thickness skin defects.

This study found that dyed chitin nanofibers maintain color and mechanical properties when reinforcing resins, allowing color addition and strength improvement while retaining transparency.

This study found that treating chitin from crab shells with ultrasonication at specific conditions effectively produced fine nanofibers with a high yield.

The tropical legume Sesbania rostrata can form nodules in waterlogged conditions using a different method that involves plant hormones and specific genes.

This study found that a newly constructed composite hydrogel dressing, made from silk fibroin, chitosan, and halloysite, promoted hair follicle neogenesis, angiogenesis tissue regeneration, and scar reduction.

This book explores various healthcare solutions derived from marine materials, covering topics like anticancer, anti-aging, and antioxidant benefits provided by substances like chitosan, marine algae, and fisheries products, as reported in the chapters reviewed by P.N. Sudha from DKM College for Women.

This review discusses the protective and reparative properties of chitin nanofibrils on hair structure and reports no clinical results; the authors suggest chitin-based products may aid in hair regrowth.

This review reports that chitosan, a versatile polysaccharide, shows potential for various therapeutic applications due to its chemical modifications, notably in treating non-communicable diseases and wound healing, though further clinical study is needed to confirm these benefits.

In animal models, this study reported that a wound dressing combining quaternized chitin and silk fibroin significantly enhanced vascular reconstruction and hair follicle regeneration, approaching normal tissue levels.

In this study, cricket-derived chitin successfully converted to nanochitin, which demonstrated improved physical properties such as higher transmittance and greater modulus compared to crab shell nanochitin.

This study found that dermatologists in São Paulo reported increased confidence in teledermatology over one year, citing its utility for triage and diagnosis, particularly for superficial infections and pigmentary disorders.

This source highlights concerns about the safety and efficacy of dietary supplements marketed for hair loss, citing a lack of FDA testing and potential risks such as adverse side effects, interference with medical tests, and withholding of ingredient information.

This study reviewed current scientific evidence on how scalp microbiome alterations may affect hair growth, citing connections to inflammatory and immune processes and suggesting potential for therapeutic targeting, though further studies are needed to confirm clinical applications.

This article reviews the potential of low-dose cytokine therapy for treating vitiligo and psoriasis, citing its promising applications but offering no new clinical results.

This review highlights the low uptake of tamoxifen and finasteride for cancer chemoprevention in primary care, citing various barriers and indicating a need for safer, more affordable options.

This chapter discusses the composition, biocompatibility, and production methods of biomaterials like collagen, chitin, and silk for dermal substitutes, focusing on preclinical and clinical research, but reports no new clinical results.

This article discusses the FDA's decision not to approve 5α-reductase inhibitors for prostate cancer prevention, citing an increase in high-grade tumors but no mortality evidence, and reports no new results.

This review focuses on neuroactive steroids' influence on GABA-ergic signaling and discusses challenges in developing them for various therapeutic uses, citing recent excitement from FDA approval of allopregnanolone for postpartum depression but reporting no new results.