50 citations,
December 2000 in “Journal of Pharmaceutical Sciences” Hair follicles significantly enhance electroosmotic transport during iontophoresis.
33 citations,
November 2019 in “Journal of Controlled Release” Microneedles with enhancer effectively promote hair growth and increase hair density.
29 citations,
May 2007 in “International journal of pharmaceutics” Different compounds move through artificial sebum at different rates, which can help choose the best ones for targeting hair follicles.
8 citations,
July 2012 in “Annals of biomedical engineering” Hair absorbs molecules differently based on their size, charge, and love for water, and less at higher pH; this can help make better hair products.
6 citations,
May 2019 in “Journal of pharmaceutical sciences” Diffusion in artificial sebum is mainly influenced by molecular size and is much faster than in skin lipids.
5 citations,
April 2005 in “Journal of applied polymer science” PEI diffuses into hair at a constant rate, and urea speeds up this process.
August 2022 in “International journal of membrane science and technology” Finasteride diffuses spontaneously through SDS micelles, suggesting they can replace living cell membranes.
67 citations,
May 2013 in “Therapeutic drug monitoring” Wait 4-5 weeks after drug use before hair testing and cut hair into three segments to confirm single drug exposure.
21 citations,
September 2013 in “Current medicinal chemistry” HAC and BAC improve skin targeting and reduce diffusion without causing irritation.
14 citations,
January 1996 in “Journal of Forensic Sciences” Hair can absorb and transfer opiates when soaked in water, with damaged hair absorbing more.
9 citations,
November 2000 in “Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE” Dyeing hair can help target and destroy hair follicles selectively.
5 citations,
January 1994 in “Skin Pharmacology and Physiology” Minoxidil absorption in skin is slowed by cleansing, depends on how long it stays on the skin, and is not much affected by reapplication.
69 citations,
January 2002 in “Journal of biomedical optics” Dyes can penetrate human skin and hair follicles up to 1.2 mm deep and the sebaceous gland can store dye; Indocyanine Green lotion was made for safe dyeing and monitoring.
5 citations,
October 2003 in “PubMed” Chemical treatments and light exposure damage hair proteins.
1 citations,
January 2024 in “IEEE access” The new method improves facial image restoration quality and face recognition accuracy.
18 citations,
April 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” Skin patterns are formed by simple reaction-diffusion mechanisms.
35 citations,
June 2017 in “Pharmaceutical research” Researchers developed a model that shows hair follicles increase skin absorption of caffeine by 20%.
15 citations,
February 2023 in “Colloids and surfaces. B, Biointerfaces” Smaller curcumin nanocrystals penetrate skin better, but additives and particle size affect absorption and accumulation.
7 citations,
March 2019 in “Journal of cosmetic dermatology” African hair has the most lipids, while Caucasian hair is more hydrated and stronger.
3 citations,
September 2018 in “Current Drug Delivery” The combination of propylene glycol and Tween® 80 improves finasteride gel effectiveness.
1 citations,
November 2022 in “Pharmaceutical research” The simulation showed that hypobaric pressure improves drug delivery through the skin, but stretching alone doesn't fully explain the increase.
January 2023 in “Advances in pharmacology and clinical trials” Human hair is a significant sample for various tests in clinical, nutritional, archaeological, and forensic studies.
January 2024 in “Saudi pharmaceutical journal” The study successfully formulated and optimized a bilayer tablet combining Tamsulosin and Finasteride using response surface methodology.
112 citations,
January 2004 in “The International journal of developmental biology” Feather patterns form through genetic and epigenetic controls, with cells self-organizing into periodic patterns.
88 citations,
August 2008 in “Development” BMP2 and BMP7 have opposite roles in feather formation.
82 citations,
May 2009 in “BJCP. British journal of clinical pharmacology/British journal of clinical pharmacology” Caffeine penetrates human skin in lab tests similarly to real-life conditions, but actual skin use is still essential for accurate results.
32 citations,
November 2020 in “Nanomaterials” Excipients greatly affect how well curcumin nanocrystals penetrate the skin and target hair follicles.
26 citations,
January 2019 in “Experimental Dermatology” Researchers created early-stage hair-like structures from skin cells, showing how these cells can self-organize, but more is needed for complete hair growth.
21 citations,
March 2017 in “Skin research and technology” Removing external lipids from hair reduces moisture and increases strength, while removing internal lipids decreases water permeability.
20 citations,
November 2019 in “Current Opinion in Systems Biology” The document concludes that computational models are useful for understanding immune responses and could improve cancer immunotherapy.