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This article reviews the basics of hair follicle biology, laser/tissue interactions, and hirsutism and hypertrichosis causes, discussing the long-pulsed alexandrite laser's role in hair reduction without reporting new clinical results.

This study reports that hair from women with breast cancer showed a unique X-ray diffraction feature, potentially offering a non-invasive method for detecting the disease.

This study found that the binding and release of BMP-2 from kerateine biomaterials are significantly influenced by pH and salt concentration, highlighting the potential for developing improved bone repair systems.

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 study found that azelaic acid entrapped in transethosomes exhibited enhanced antidermatophyte activity and improved treatment outcomes in guinea pig models of dermatophytosis compared to free azelaic acid.

This study reports that optimized PLA nanoparticles can effectively target hair follicles to deliver both lipophilic and hydrophilic compounds, suggesting potential applications in hair cosmetics and treatments.

This study found that the long-pulse Nd:YAG laser effectively reduces unwanted facial hair across various skin types, with hair regrowth delayed significantly longer than with self-applied methods.

In this study, FITC-labeled BSA nanocarriers delivered a model drug deeper into porcine ear skin hair follicles than the carriers themselves, as shown by confocal microscopy.

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

This study investigated a nanostructured system using PS-b-PAA diblock copolymer for incorporating the hydrophobic photosensitizer ClAlPc, finding it effective in causing cellular damage in Caco-2 cells under light while demonstrating no cytotoxicity without light, suggesting its potential use in photodynamic therapy.

This study found that novel RNA aptamers specifically inhibited FGF5-induced cell proliferation, suggesting their potential as candidates for treating FGF5-related diseases or hair disorders.

In this ex vivo and mouse model study, Tofacitinib-loaded nanoparticles demonstrated enhanced delivery of the drug into hair follicles and reduced inflammatory effects compared to conventional forms, indicating potential for safer, topical use in treating alopecia areata.

In this study, researchers developed a new Supported Ionic Liquid Phase palladium catalyst that showed effectiveness in aminocarbonylation reactions for synthesizing pharmaceutical compounds like CX-546 and a precursor of Finasteride, though results were sensitive to substrate variations and prompted palladium leaching concerns.

This study found that cholesterol- and phospholipid-free multilamellar niosomes improved skin deposition and targeted deeper hair follicles better than hydrophobic PLGA nanoparticles for transdermal drug delivery.

In this study, luteolin-loaded nanoemulsions were shown to promote hair growth similarly to a luteolin solution in organic solvents, offering enhanced stability for follicular delivery.

This study found that photobiomodulation enhanced hair regeneration in injured dermis of mice, likely through increased migration and exosome secretion of dermal papilla cells via the Akt/GSK-3β/β-catenin pathway.

This study found that a cedrol nanoemulsion improved hair growth and bioavailability compared to an ointment, demonstrating enhanced efficacy in vitro and in vivo.

This study found that hair follicle cells' growth in vitro is influenced by the concentration of androgens and antiandrogens, with papilla cells and outer root sheath keratinocytes showing distinct sensitivity.

This study analyzed clinical and histological reports and concluded that blue light therapy is safe for human skin, with potential photoprotective effects against UV irradiation due to its impact on skin pigmentation mediated by Opsin-3.

Excimer laser therapy can be an alternative for treating superficial morphea when topical steroids don't work.

This study introduced laser particles as a new imaging probe capable of real-time tracking of thousands of individual cells in 3D tumor models, suggesting potential for advanced single-cell analyses.

In this study, BPA rapidly increased dendritic spine and synapse densities in cultured rat hippocampal neurons, with involvement of estrogen receptors and ERK1/2 and p38 pathways, but disrupted dihydrotestosterone's effects on synaptic plasticity.

Laser hair removal might also work by damaging blood vessels around hair follicles.

This animal study found that intravenous administration of anionic squarticles, a lipid nanoemulsion, increased survival rates in rats with amitriptyline overdose by mitigating adverse effects and restoring normal blood pressure, highlighting its potential as a detoxifying antidote.

In a double-blind clinical trial, this study found that a gel containing chitosan-coated spironolactone nanoparticles effectively reduced acne lesions over 8 weeks without adverse skin effects, suggesting potential for enhanced acne treatment through targeted skin delivery.

This study developed a fully natural resveratrol nanoparticle system using lecithin, showing potent anti-cancer activity in vitro and increased tumoral uptake in vivo on breast cancer models.

Finasteride reduces opioid use and withdrawal symptoms in animals.

This study explored using a chitosan oligomer coating for topical delivery of dutasteride-loaded nanostructured lipid carriers, aiming to reduce systemic exposure and cytotoxicity.

This study found that clindamycin-loaded PHA nanoparticles showed potent antibacterial effects against MRSA and enhanced wound healing in a mouse model of MRSA-infected wounds, indicating their potential as a novel treatment for these infections.

This study observed that silver nanoparticles synthesized using Laurus nobilis leaf extracts significantly inhibited protein denaturation and membrane stabilization in vitro, suggesting potential as a basis for novel antiarthritic drugs.