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This chapter reviews formulation principles for creating cosmetic nanoemulsions and applications targeting skin and hair care, but does not present new experimental results.

This review discusses the use of supercritical carbon dioxide for extracting rice bran oil, noting its advantages over conventional methods for preserving nutrients and antioxidants, but provides no new experimental results.

This study found that cucurbitacin I from bitter melon most effectively inhibited the growth of lung cancer cells and promoted hair cell growth in cell cultures.

This study found that capped mesoporous silica nanoparticles conjugated with antibodies selectively released a dye when exposed to finasteride, with low detection limits and stable performance even after storage.

This study found that several synthesized pregnane derivatives exhibited significant inhibitory effects on testosterone conversion to dihydrotestosterone and reduced related androgenic parameters in multiple pharmacological models.

This review discusses the potential of nanotechnology-based formulations for delivering topical minoxidil to improve hair loss treatment outcomes and reports no new clinical results, urging further research into their benefits and safety considerations.

This study found that AGO@HPC nanocomposite films demonstrated enhanced mechanical, anti-ultraviolet, and antibacterial properties, suggesting potential for use in antibacterial packaging and wound-dressing applications.

This study found that two new progesterone derivatives showed higher antiandrogenic effects and 5α-reductase inhibition than finasteride in hamsters, particularly reducing seminal vesicle weight and flank organ size.

In this study, osthenol was identified as a highly potent inhibitor of 5alpha-reductase type I in LNCaP cells, significantly outperforming finasteride.

This study identified specific germline and somatic mutations in the Phospholipase C Delta 1 gene as high-risk factors for developing hereditary trichilemmal cysts, involving a monoallelic two-hit mechanism.

This review discusses the research and development of vesicular carriers to enhance the delivery and effectiveness of active ingredients in cosmetic products, reporting no new clinical results.

This study suggests that gel containing OSF3 loaded in niosomes offers high transfollicular penetration for topical anti-androgenic alopecia treatment with minimal systemic effect.

This study found that using a combination of iontophoresis and liposomal delivery facilitated the effective intradermal administration of superoxide dismutase in rats, reducing oxidative skin damage from UV exposure.

This study reported the development of a novel and reliable liquid chromatographic method to measure testosterone and epitestosterone in human urine, offering sensitive detection for doping control.

This study found that abietic acid from pine resin more effectively inhibits testosterone 5α-reductase than several plant extracts, suggesting potential for treating androgen-dependent diseases.

This study describes a new method for extracting red mordant dyes from wool fibers using ethylene diamine tetraacetic acid and N,N-dimethyl formamide, preserving the fibers for further examination.

This study developed a specific radioimmunoassay to measure minoxidil levels in human serum directly from a single oral dose.

This study developed a portable electrospinning device that mimics hair for cosmetic thickening in a mouse model, showing performance comparable to benchtop models with added safety and cost benefits.

This study found that valproic acid may interfere with the leucine metabolic pathway by inhibiting 3-methylcrotonyl-CoA carboxylase and biotinidase, which could contribute to side effects like skin rash and hair loss in patients.

This study found that Ganoderma lucidum extracts showed weak 5alpha-reductase inhibition but significantly inhibited prostate cell proliferation and testosterone-driven prostate growth in rats, suggesting potential as an ingredient for treating androgen-induced diseases.

This study reports that five new progesterone derivatives demonstrated inhibitory activity against the 5α-reductase enzyme and binding affinity for the androgen receptor in an in vitro hamster model.

This review discusses the potential uses of 5α-reductase inhibitors for conditions ranging from benign prostatic hyperplasia to skin disorders like acne and male pattern baldness, but it reports no new clinical results.

Accurate method measures finasteride levels in human plasma using gas chromatography-mass spectrometry.

This research investigated aqueous alginate-based hydrogels for delivering minoxidil and reported that using hydroxypropyl-β-cyclodextrin (HP-β-CD) with molar substitution 0.65 significantly enhanced minoxidil's solubility and skin permeability without damaging the epidermis, suggesting potential as an alternative to commercial minoxidil solutions.

This study found that the MXD/HP-β-CD GEL formulation promoted greater hair growth and improved gene expression related to hair growth in male rats compared to MXD solution or control groups.

This study found that Sargassum muticum extract and apo-9′-fucoxanthinone promoted hair growth in rat and mouse models by increasing dermal papilla cell proliferation and activating certain signaling pathways.

This review discusses the topical use of systemic drugs for cutaneous disorders and reports a lack of strong evidence from randomized controlled trials, highlighting the need for larger comparative effectiveness studies.

This article discusses various options for camouflaging hair loss involving the scalp, eyebrows, and eyelashes, and reports no new clinical findings.

Some chemicals absorbed through the skin can cause serious health problems.

This study developed and validated a high-performance liquid chromatographic method for identifying finasteride and its degradation products, showing excellent resolution and sensitivity under various decomposition conditions.