Hair fibers degrade and change color in very basic water.
316 citations,
June 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” Microspheres about 1.5 micrometers in size can best penetrate hair follicles, potentially reaching important stem cells.
188 citations,
May 2009 in “Plant physiology” Researchers found 19 genes important for root hair growth in a plant called Arabidopsis.
184 citations,
December 2018 in “Nature Communications” Researchers created human hair follicles using a new method that could help treat hair loss.
176 citations,
August 2000 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Hormone treatments in transsexual individuals reduce hair growth and oil production in male-to-females and increase them in female-to-males.
150 citations,
April 1999 in “Dermatologic Clinics” Laser hair removal effectiveness depends on targeting hair structures without harming the skin, and improvements require more research and expert collaboration.
113 citations,
November 2017 in “Scientific Reports” Tiny particles from stem cells help activate hair growth cells and encourage hair growth in mice without being toxic.
92 citations,
June 2010 in “Journal of The American Academy of Dermatology” Dutasteride 0.5 mg daily improves hair growth safely in men with hair loss.
91 citations,
January 2009 in “International Journal of Trichology” Different hair evaluation methods have their own pros and cons, and using multiple methods together is best for accurate hair loss diagnosis and tracking.
84 citations,
January 2018 in “Biomaterials Science” Sericin hydrogels heal skin wounds well, regrowing hair and glands with less scarring.
80 citations,
June 2008 in “Biomaterials” EVAL membranes help create cell structures that can regrow hair follicles.
73 citations,
April 1999 in “Dermatologic Clinics” Lasers and light sources can effectively remove hair, work best on fair skin with dark hair, and usually need multiple treatments.
68 citations,
August 2014 in “Stem Cells Translational Medicine” Dermal papilla cells help wounds heal better and can potentially grow new hair.
67 citations,
October 1997 in “Dermatologic Surgery” The EpiLight Hair Removal System removed about 60% of hair with some side effects, and more research is needed to confirm long-term effectiveness.
66 citations,
September 2005 in “Photochemical & photobiological sciences” We don't fully understand how sunlight damages different types of hair.
64 citations,
August 2007 in “Artificial Organs” PHBV nanofiber matrices help wounds heal faster when used with hair follicle cells.
61 citations,
September 2020 in “Bioactive Materials” A special dressing called FEA-PCEI can speed up wound healing, reduce scars, and help grow new hair follicles, but only at the right dosage.
56 citations,
May 2017 in “Nature Cell Biology” Hair can regrow after certain stem cells are lost because other stem cells can take over their role.
45 citations,
November 2017 in “Biomaterials” Researchers found a new way to create hair-growing structures in the lab that can grow hair when put into mice.
45 citations,
June 2004 in “Lasers in Medical Science” Intense pulsed light (IPL) is an efficient and safe method for hair removal, reducing hair by about 80%.
43 citations,
October 2002 in “International Journal of Cosmetic Science” All three shampoos reduced dandruff and hair loss, but ketoconazole and piroctone olamine also made hair thicker.
37 citations,
February 2014 in “Journal of Dermatology” Valproic acid increases hair count in men with hair loss.
34 citations,
August 1966 in “Experimental cell research” Keratin fibrils in hair form and stop growing at specific points in the follicle.
30 citations,
April 2020 in “Stem Cell Research & Therapy” PI3K/Akt pathway is crucial for hair growth and regeneration.
26 citations,
September 1990 in “Ophthalmology” The study found no common cause for a girl's crystalline cataract and uncombable hair, suggesting their co-occurrence might be coincidental.
25 citations,
May 2020 in “Progress in Organic Coatings” Castor oil-based polyurethanes are promising for making safe, strong-performing, eco-friendly hair-styling products.
25 citations,
February 2019 in “Genomics” Cashmere and milk goats have different hair growth cycles and gene expressions, which could help improve wool production.
25 citations,
June 2011 in “International journal of pharmaceutics” Nanoparticles effectively deliver water-insoluble drugs to hair follicles, stimulating hair growth without irritating the skin.
25 citations,
April 2008 in “Archives of Dermatological Research” Encapsulated human hair cells can substitute for natural hair cells to grow hair.
25 citations,
June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Phototrichogram and hair diameter measurements are effective, noninvasive ways to assess hair growth and detect early hair loss, with the most common pattern being reduced hair density.