TLDR  Scientists developed a new method to deliver alopecia treatment directly to hair follicles, which could be a promising treatment for hair loss and other hair diseases.   
  In 2017, researchers Maitra, Goyal, and Rath developed a new method for delivering minoxidil, a common alopecia treatment, directly to hair follicles. They created a minoxidil-loaded microemulsion, characterized by a globule size of 41.0nm, a zeta potential of +28.22mV, and a transmittance of 98.1%. The microemulsion showed an in-vitro release of 68.5% after 24 hours and 67.5% drug retention inside the hair shaft in ex-vivo studies. The formulation significantly altered the follicular response in a 5-Fluorouracil induced alopecia model. The study concluded that this novel approach could be a promising treatment for alopecia and other follicular diseases.
            29 citations
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  June 2013   in “Journal of the Saudi Society of Dermatology & Dermatologic Surgery”
           29 citations
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  June 2013   in “Journal of the Saudi Society of Dermatology & Dermatologic Surgery”    Alopecia areata is an autoimmune hair loss condition treated with corticosteroids, and histologic confirmation is the best diagnosis method.  
      103 citations
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  December 2011   in “Journal of the American Academy of Dermatology”
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  December 2011   in “Journal of the American Academy of Dermatology”    Chemotherapy often causes temporary hair loss, which is distressing and needs better treatment and support.  
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           166 citations
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  November 1990   in “Journal of Investigative Dermatology”    Minoxidil sulfate stimulates hair growth.  
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  July 1988   in “Clinics in dermatology”
           20 citations
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  July 1988   in “Clinics in dermatology”    Thioglycolate lotions are the most popular method for permanent waving and hair straightening.  
               73 citations
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  October 1986   in “Journal of the American Academy of Dermatology”    Tretinoin may help hair growth and works better when combined with minoxidil.  
    
  
        
        4 citations
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  May 2022   in “Future Journal of Pharmaceutical Sciences”
           4 citations
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  May 2022   in “Future Journal of Pharmaceutical Sciences”    Melatonin-loaded microemulsion could be a promising treatment for hair loss.  
      40 citations
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  January 2018   in “Pharmaceutics”
           40 citations
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  January 2018   in “Pharmaceutics”    Eucalyptol and oleic acid in nanoemulsions improve minoxidil delivery to hair follicles, potentially enhancing hair loss treatment.  
      21 citations
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  April 2012   in “European Journal of Pharmaceutics and Biopharmaceutics”
           21 citations
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  April 2012   in “European Journal of Pharmaceutics and Biopharmaceutics”    The gel with special fat-loaded particles from rice bran could be an effective skin treatment for hair loss.  
      72 citations
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  December 2012   in “Expert Opinion on Drug Delivery”
           72 citations
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  December 2012   in “Expert Opinion on Drug Delivery”    Niosomes are promising for skin drug delivery, offering benefits like improved drug penetration and stability.  
               10 citations
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  February 2021   in “International Journal of Nanomedicine”    Chitosan-decorated finasteride nanosystems improve skin retention and could be a better treatment for hair loss.