95 citations
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January 2009 in “Journal of Biomedical Optics” Nanoparticles penetrate hair follicles better when their size matches the cuticula thickness.
November 2006 in “Dermatologic Surgery” Cutting hair follicles into pieces for transplantation results in poor growth and thinner hair, and the technique is more invasive than previously thought.
51 citations
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November 2010 in “Dermatologic Surgery” The research provides specific measurements for hair follicles that can improve hair transplant and regeneration techniques.
39 citations
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November 2013 in “European journal of pharmaceutics and biopharmaceutics” Massage increases how deep both rigid and flexible liposomes can go into skin, with flexible ones going deeper, and covering the skin (occlusion) helps rigid ones more.
26 citations
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May 2012 in “Pharmaceutical Development and Technology” PEVs effectively deliver minoxidil through skin.
October 2025 in “Dermatologic Surgery” Twisted hair follicles can survive transplantation as well as intact ones.
67 citations
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January 2012 in “Biological and Pharmaceutical Bulletin” Nanoparticles don't penetrate intact skin but can enter through pores or damaged skin.
November 2024 in “Pharmaceutics” Transfersomes are better than liposomes for targeting hair follicles in alopecia treatment.
2 citations
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November 2025 in “Pharmaceutics” Moderately lipophilic dyes penetrate skin deeply, while highly hydrophobic or lipophilic dyes stay on the surface.
Finasteride-loaded microemulsions, made with cinnamon oil, Tween20, propylene glycol, and water, can help maintain stemness of dermal cells, potentially aiding in hair regeneration.
1 citations
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September 2023 in “Portuguese Journal of Dermatology and Venereology” Trichoscopy can help diagnose and decide when to biopsy folliculotropic mycosis fungoides.
1 citations
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November 2021 in “Ultrasonography” Ultrasound boosts finasteride's hair growth effects in mice.
24 citations
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February 2007 in “Laser Physics Letters” Caffeine shampoo penetrates hair follicles deeply and stays for up to 48 hours.
28 citations
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May 1998 in “Journal of the American Academy of Dermatology” Scalp inflammation can cause multiple hairs to grow from one follicle.
October 2024 in “Journal of Cutaneous Pathology” Compound follicles in folliculitis decalvans mainly have active hair follicles.
33 citations
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November 2019 in “Journal of Controlled Release” Microneedles with enhancer effectively promote hair growth and increase hair density.
182 citations
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December 2007 in “BJCP. British journal of clinical pharmacology/British journal of clinical pharmacology” Hair follicles significantly increase the speed and amount of caffeine absorbed through the skin.
11 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” October 2024 in “International Journal of Pharmaceutics” The finasteride patch effectively treats hair loss by enhancing skin absorption.
29 citations
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September 2024 in “AAPS PharmSciTech” Transcutol® helps drugs penetrate the skin more effectively in various formulations.
October 2025 in “Transplantation” Dissolving microneedles with finasteride improve drug delivery for hair loss treatment.
December 2015 in “Vascular Pharmacology” Hair papilla cells are crucial for blood vessel development in hair follicles, affecting hair growth and loss.
9 citations
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July 2008 in “Oncology Reports” HPV16-transformed cells can change human skin cell properties, aiding tumor growth.
12 citations
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July 2011 in “Experimental Dermatology” The ethosomal delivery system improves topical drug delivery and promotes hair growth.
30 citations
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March 2016 in “European Journal of Pharmaceutical Sciences” Optimized film improves finasteride skin absorption and treatment efficiency.
23 citations
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December 1977 in “Virchows Archiv B Cell Pathology” 3 citations
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January 2004 in “Zhōnghuá yàoxué zázhì” Ethosomes improve skin absorption of finasteride more than other methods.
1 citations
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October 2021 in “Journal of Investigative Dermatology” Ethnic differences in skin and hair affect penetration minimally, but cultural habits matter in product development.
July 2013 in “Pharmaceutical Regulatory Affairs Open Access” Invasomes with 0.5% limonene greatly improve skin delivery of finasteride.