March 2006 in “Chinese journal of plastic surgery” Microencapsulated human hair cells can regenerate hair follicles in mice ears.
7 citations
,
January 2020 in “Skin Pharmacology and Physiology” Standard nail varnish effectively prevents follicular penetration of certain substances.
11 citations
,
January 2000 in “Journal of cosmetic science” Hydrolyzed wheat proteins penetrate all hair types effectively.
119 citations
,
December 2008 in “The journal of investigative dermatology/Journal of investigative dermatology” Nanoparticles can deliver vaccines through hair follicles, triggering immune responses and providing protection.
1 citations
,
July 2019 in “Microscopy Today” Microfluorometry effectively measures how much polymer coats and penetrates hair, useful for evaluating hair products.
6 citations
,
December 2015 in “International journal of nanomedicine” Using sonophoresis can make it harder for certain drug-loaded liposomes to get through the skin.
33 citations
,
November 2019 in “Journal of Controlled Release” Microneedles with enhancer effectively promote hair growth and increase hair density.
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.
2 citations
,
April 2021 in “International Journal of Pharmaceutics” Serum formulations were better at delivering molecules to the hair bulb than nanoparticles.
49 citations
,
August 2016 in “Aesthetic Surgery Journal” Micro-needling effectively improves wrinkles, scars, and hair growth, but proper technique and safety are important.
19 citations
,
April 2013 in “Drug Development and Industrial Pharmacy” Hair follicles are important for the absorption of certain drugs into the skin.
2 citations
,
November 2025 in “Pharmaceutics” Moderately lipophilic dyes penetrate skin deeply, while highly hydrophobic or lipophilic dyes stay on the surface.
162 citations
,
August 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” The new "differential stripping" method effectively measures how much substance gets into hair follicles.
67 citations
,
January 2012 in “Biological and Pharmaceutical Bulletin” Nanoparticles don't penetrate intact skin but can enter through pores or damaged skin.
10 citations
,
January 2014 in “Chemical and Pharmaceutical Bulletin” Ethanol pretreatment affects drug penetration through skin and hair follicles.
January 2012 in “Journal of Cosmetics Dermatological Sciences and Applications” Iontophoresis greatly improves skin absorption of certain substances, especially in hairy mice.
133 citations
,
February 2019 in “PLoS Biology” Feather patterns in birds are shaped by signaling interactions and cell movements, with EDA/EDAR crucial for pattern formation.
88 citations
,
July 2008 in “Development” BMP2 and BMP7 have opposite roles in feather formation.
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.
January 2024 in “RSC pharmaceutics” Removing the outer skin layer increases drug absorption and offers non-invasive treatment options, with some methods allowing for quick skin recovery.
21 citations
,
July 2015 in “International Journal of Nanomedicine” Increased liposome fluidity boosts skin penetration of sodium fluorescein.
149 citations
,
July 2017 in “PLoS Biology” Hair follicle patterns form through a mix of self-organization and signaling interactions.
36 citations
,
July 2004 in “Journal of Controlled Release” The dye quickly penetrates hair follicles, mainly through the gap, not the surrounding skin.
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.
February 2024 in “Infection and drug resistance” Tinea capitis in a child was caused by a fungus from cats, highlighting the need for accurate diagnosis and treatment.
5 citations
,
November 2003 in “PubMed” Chemical treatments and light exposure damage hair proteins.
10 citations
,
June 2019 in “International Journal of Pharmaceutics” Hair removal methods damage the skin barrier and affect substance penetration.
2 citations
,
January 2018 in “Biomolecules & therapeutics” Polyamidoamine dendrimers can change the strength and direction of electroosmotic flow through the skin, affecting drug delivery.
32 citations
,
September 2018 in “Journal of pharmaceutical sciences” The model better predicts how water-loving and fat-loving substances move through the skin by including tiny pores and hair follicle paths.
13 citations
,
September 2020 in “Sensors” Hair follicles have a pH gradient, increasing towards the root.