2 citations,
December 2019 in “Cureus” A patient with a scalp condition and benign skin tumor experienced hair loss and did not improve with treatment, choosing not to have surgery despite a small cancer risk.
15 citations,
April 2020 in “Journal of The American Academy of Dermatology” Botulinum toxin injections may help treat hair loss by blocking harmful secretion in hair follicles.
3 citations,
April 2002 in “Animal Science” The study investigated the effects of intradermal spermidine injections on wool follicle growth in Merino lambs. Three groups of eight lambs received different concentrations of spermidine injections on a small skin patch, with saline as a control on the opposite side. Results showed that spermidine increased the concentration in the skin and stimulated cell division in the follicle bulb, with higher doses leading to greater increases. Fibre length growth rate was also higher with spermidine, although fibre diameter did not change significantly. The study concluded that spermidine injections altered skin spermidine homeostasis, stimulated cell proliferation, and increased fibre growth.
March 2023 in “Clinical Toxicology” January 2019 in “11th World congress for hair research” 
1 citations,
July 2020 in “Journal of The American Academy of Dermatology” Botulinum toxin may help treat hair loss by relaxing scalp muscles, improving oxygen and blood flow.
1 citations,
November 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” Signals from skin cells controlled by Rac proteins help turn certain precursor cells into white fat cells.
September 2022 in “Dermatologic Therapy” 
218 citations,
May 2014 in “Experimental Dermatology” Skin fat cells help with skin balance, hair growth, and healing wounds.
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.
60 citations,
March 2014 in “Veterinary dermatology” Cats with atopic dermatitis often have severe, year-round itching and respond well to certain treatments.
55 citations,
May 2017 in “Current stem cell research & therapy” Using fat-derived stem cells for hair loss treatment is safe and effective, improving hair growth and patient satisfaction.
45 citations,
April 2016 in “Journal of Dermatological Science” The Wnt/β-catenin pathway can activate melanocyte stem cells and may help regenerate hair follicles.
43 citations,
February 2008 in “Journal of cutaneous pathology” Melanocyte precursors in human fetal skin follow a specific migration pattern and some remain in the skin's deeper layers.
34 citations,
September 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Gene therapy shows promise for treating hair loss by targeting hair follicles.
33 citations,
September 2019 in “Dermatologic Surgery” Using a special stem cell formula on the scalp once a month for six months helped people with hair loss grow more hair.
27 citations,
March 2008 in “Cell stress & chaperones” Localized heat or specific injections can prevent chemotherapy-induced hair loss without affecting cancer treatment.
25 citations,
June 1975 in “Archives of Dermatology” Corticosteroid injections for hair loss can cause skin thinning.
23 citations,
September 2015 in “PLOS ONE” Mesenchymal stem cells, especially injected into the skin, heal wounds faster and better than chitosan gel or other treatments.
20 citations,
August 2005 in “The Journal of laboratory and clinical medicine” Mice with damaged skin or hair follicles are more susceptible to anthrax infection.
18 citations,
February 2017 in “Journal of Cosmetic Dermatology” Mesotherapy for hair loss can sometimes cause more hair loss and scarring.
18 citations,
September 2016 in “International Journal of Molecular Sciences” Polydeoxyribonucleotide (PDRN) may help lighten skin and treat hyperpigmentation.
16 citations,
November 2011 in “PubMed” The treatment improved hair growth in people with male pattern baldness.
15 citations,
November 1994 in “International Journal of Dermatology” Propranolol combined with injections caused skin changes in guinea pigs but didn't fully mimic psoriasis.
15 citations,
September 1984 in “Veterinary Clinics of North America: Small Animal Practice” The document explains various skin conditions in cats and how to diagnose and treat them.
14 citations,
June 1982 in “Archives of Dermatology” A man had bad reactions to a hair loss treatment called DNCB.
12 citations,
October 2016 in “Anais Brasileiros de Dermatologia” Frontal Fibrosing Alopecia may be linked to autoimmune diseases like Sjögren's syndrome.
9 citations,
July 2021 in “Frontiers in Pharmacology” Cholesterol-modified siRNAs targeting certain genes increased hair growth in mice.
9 citations,
June 2017 in “Pharmacological Reports” ATP-sensitive potassium channels play a role in chloroquine-induced itch in mice.
6 citations,
February 2021 in “Advances in Clinical and Experimental Medicine” Wharton's jelly-derived stem cells were safely used to treat four alopecia patients, resulting in hair regrowth in all of them.