25 citations
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June 1990 in “Journal of Pharmaceutical Sciences” Longer contact time increases minoxidil absorption, but doesn't affect metabolism.
94 citations
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May 2011 in “BJCP. British journal of clinical pharmacology/British journal of clinical pharmacology” Hair follicles greatly increase caffeine absorption through the skin shortly after it's applied.
1 citations
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October 2023 in “Journal of personalized medicine” Food intake, not genetics, affects how the body processes tadalafil and finasteride.
5 citations
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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.
October 2025 in “BMC Pediatrics” Timely zinc treatment is crucial for preventing severe complications in Acrodermatitis enteropathica.
55 citations
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September 2017 in “Expert Opinion on Drug Discovery” Different factors affect where drugs are absorbed in the small intestine, which is important for effective medication use.
30 citations
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April 1990 in “Clinical Pharmacology & Therapeutics” Tretinoin cream boosts minoxidil absorption, possibly improving hair loss treatment.
18 citations
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May 2014 in “International journal of pharmaceutics” Aging and sun damage do not increase the skin's absorption of certain sunscreens and drugs.
25 citations
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June 2015 in “Clinical, Cosmetic and Investigational Dermatology” Microneedling helps increase the absorption of a melanin product into hair follicles, which may improve laser hair removal effectiveness.
January 2022 in “Figshare” Melatonin affects specific gene patterns and biological processes in goat hair growth.
11 citations
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January 2016 in “International Journal of Biological Macromolecules” Enzymatic phosphorylation of hair keratin improves the effectiveness of hair products with cationic ingredients.
November 2025 in “BMC Urology” Larger prostate size, longer surgery, and smoking increase risks, while finasteride and experienced surgeons reduce them during prostate surgery.
14 citations
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February 2011 in “Drug Metabolism and Disposition” Ketoconazole increases finasteride's effectiveness and lifespan in the body.
11 citations
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December 2020 in “Notulae botanicae Horti Agrobotanici Cluj-Napoca” Mycorrhizal fungi and shading improve tea plant growth and nutrient uptake by changing hormone levels and gene expression.
7 citations
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January 2002 in “Biological Trace Element Research” Children with pituitary dwarfism have higher zinc and copper, lower manganese, and similar iron levels in hair compared to normal children.
52 citations
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January 2020 in “Scientific Reports” NLCs with manual massage greatly improve clobetasol delivery to hair follicles.
38 citations
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February 2005 in “The journal of sexual medicine” The testosterone patch and gel are both effective, but they have different absorption patterns and effects on hormone levels.
82 citations
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April 1981 in “Clinical endocrinology” A girl with rickets and hair loss was found to have a rare condition where her body didn't respond to vitamin D treatment.
27 citations
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September 2018 in “Medicines” Oleic acid nanovesicles improve minoxidil absorption in hair follicles for alopecia treatment.
20 citations
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January 2007 in “Fertility and Sterility” A woman developed male traits from accidental contact with her husband's testosterone gel.
6 citations
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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.
2 citations
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December 2019 in “Textile Research Journal” L-cysteine and ultrasound successfully improved rabbit hair fibers for industrial use.
2 citations
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January 2012 in “Hair therapy & transplantation” DDAIP-HCl significantly increases minoxidil absorption into the skin.
1 citations
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December 2022 in “Pharmaceuticals” Noni fruit extract, specifically the FEA-3 sub-fraction, can increase hair growth and reduce baldness in male rabbits, potentially acting like common hair loss treatments.
1 citations
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January 2013 in “International Journal of Physical and Social Sciences” Hair and nails can show long-term changes in lead and calcium levels.
Topical finasteride accumulates in the skin with minimal absorption into the bloodstream.
3 citations
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January 2004 in “Zhōnghuá yàoxué zázhì” Ethosomes improve skin absorption of finasteride more than other methods.
2 citations
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August 2020 in “Chemical and Pharmaceutical Bulletin” Rubbing increases drug absorption through hair follicles.
27 citations
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December 2006 in “Environmental Science & Technology” LA-ICP-MS can effectively track mercury exposure over time in hair.
3 citations
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September 1989 in “Journal of Investigative Dermatology” Methyl caprate greatly increases drug absorption through the skin and is better than other enhancers.