36 citations,
December 2016 in “Journal of The American Academy of Dermatology” The normal range for the hair pull test is 2 hairs or fewer, and washing or brushing hair before the test does not affect the results.
36 citations,
December 2002 in “Experimental dermatology” Barley extract, specifically procyanidin B-3, can promote hair growth and counteract growth inhibition.
35 citations,
May 2019 in “Frontiers in genetics” Non-coding RNAs play key roles in the hair growth cycle of Angora rabbits.
35 citations,
January 2014 in “Journal of Tissue Engineering” Cell-based therapies using dermal papilla cells and adipocyte lineage cells show potential for hair regeneration.
34 citations,
November 2013 in “Breast Cancer Research and Treatment” Aromatase inhibitor therapy for breast cancer increases the risk of hair loss and thinning.
33 citations,
August 2018 in “Facial Plastic Surgery Clinics of North America” The document explains hair biology, the causes of hair loss, and reviews various hair loss treatments.
32 citations,
July 2012 in “Stem Cells Translational Medicine” Vitamin D3 can help improve hair growth by enhancing the function of specific skin cells and could be useful in hair regeneration treatments.
31 citations,
January 2019 in “Journal of Cutaneous Medicine and Surgery” Platelet-Rich Plasma (PRP) therapy can promote hair growth and improve facial aesthetics, including reducing acne scars and facial burns, and it works best with three initial monthly injections.
31 citations,
April 2016 in “Nature communications” Certain signals are important for reducing specific chemical markers on hair follicle stem cells during rest periods, which is necessary for healthy hair growth.
31 citations,
September 2013 in “Stem Cells” Smad1 and Smad5 are essential for hair follicle development and stem cell sleepiness.
31 citations,
December 2002 in “Biochimica et biophysica acta. G, General subjects/Biochimica et biophysica acta. General subjects (Online)” The research found two types of calcium in human hair, one that varies among individuals and another that is consistent across people.
30 citations,
April 2020 in “Stem Cell Research & Therapy” PI3K/Akt pathway is crucial for hair growth and regeneration.
30 citations,
December 2018 in “Trends in Endocrinology and Metabolism” Both immature and mature fat cells are important for hair growth cycles, with immature cells promoting growth and mature cells possibly inhibiting it.
30 citations,
July 2017 in “Stem cells and cloning” SVF-enhanced adipose transplantation shows potential as a hair loss treatment.
30 citations,
March 2017 in “ACS biomaterials science & engineering” Hair follicles are valuable for regenerative medicine and wound healing.
30 citations,
May 2010 in “British Journal of Dermatology” Intermediate hair follicles are a better model for studying hair growth and testing hair loss treatments.
29 citations,
May 2020 in “npj Regenerative Medicine” Immune cells help regulate hair growth, and better understanding this can improve hair loss treatments.
29 citations,
March 2008 in “Dermatologic Surgery” The Cross-section Trichometer is a new tool that can measure hair quantity and detect hair loss and growth.
29 citations,
March 2008 in “Postcolonial Studies” The article concludes that the global hair trade is exploitative and reflects complex cultural and economic issues.
28 citations,
October 2007 in “PubMed” Low iron levels are linked to more hair loss in non-menopausal women.
27 citations,
December 2020 in “Experimental Dermatology” Grey hair and baldness may be linked to COVID-19 severity, but more analysis is needed; post-infectious hair loss is related to the severity of the disease and usually recovers within 3-6 months.
27 citations,
September 2017 in “Journal of Medicinal Food” Annurca apple supplement safely increases hair growth and keratin in humans.
27 citations,
September 2017 in “Archives of Dermatological Research” Topical tofacitinib may grow hair better than minoxidil by increasing VEGF and reducing inflammation.
27 citations,
January 2013 in “The journal of investigative dermatology/Journal of investigative dermatology” Somatostatin may help protect hair follicles from immune attacks.
27 citations,
January 2010 in “Animal” South American camelids should be sheared early, fleece type affects fiber quality, and the S/P follicle ratio doesn't distinguish between Bolivian llama genotypes.
27 citations,
May 2006 in “Biochemical and Biophysical Research Communications” Wnt-10b is important for starting hair growth and developing hair follicles.
26 citations,
November 2016 in “European Journal of Clinical Pharmacology” Valproic acid helps delay hair loss and increases survival time for high-grade glioma patients undergoing radiation therapy.
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.
25 citations,
September 2020 in “Molecules” Quercitrin may help treat hair loss by promoting hair growth and improving cell health.
25 citations,
May 2020 in “Stem Cells Translational Medicine” ADSC-CE treatment safely increases hair density and thickness in androgenetic alopecia patients.