December 2012 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” The conclusion is that the dermal papilla is crucial for hair follicle regrowth, and hair follicles undergo significant structural changes in addition to cell division during regeneration.
October 2012 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Scientists used a special imaging technique to observe that hair follicle regeneration involves cell division and structural changes, mostly in the lower part of the follicle, and that the dermal papilla at the base is crucial for regrowth.
21 citations
,
January 2018 in “Lasers in Medical Science” The 1927-nm fractionated thulium laser treatment significantly improves hair thickness and count in pattern hair loss patients.
16 citations
,
February 2013 in “Molecular Medicine Reports” CD34+ cells from fat tissue help form hair follicles and blood vessels in skin.
14 citations
,
October 2017 in “European Journal of Medical Research” Platelet-rich plasma can help grow more and longer hair by creating new blood vessels.
6 citations
,
August 2014 in “Dermatologic Surgery” PRP injections may improve hair loss condition, but more research needed.
156 citations
,
October 2012 in “Seminars in Cell & Developmental Biology” Different types of stem cells in hair follicles play unique roles in wound healing and hair growth, with some stem cells not originating from existing hair follicles but from non-hair follicle cells. WNT signaling and the Lhx2 factor are key in creating new hair follicles.
15 citations
,
December 1994 in “The American Journal of Cosmetic Surgery” Half follicular grafts are not effective for hair transplants.
2 citations
,
January 2014 in “Journal of clinical and diagnostic research” Emerging therapies like stem cell and laser treatments show promise for hair regeneration.
September 2025 in “Frontiers in Cell and Developmental Biology” Retinoic acid may help heal skin without scars by reducing fibrosis and supporting skin regeneration.
November 2022 in “Animal Bioscience” Adding methionine to a low-protein diet helps Angora rabbits grow better fur.
15 citations
,
January 2002 in “Gynecological endocrinology” Hormones affect skin aging and fat distribution, and treatments can help, but only minoxidil is proven for female hair loss.
7 citations
,
February 2015 in “Journal of comparative pathology” CD8+ T cells play a key role in graft-versus-host disease in certain mice models.
4 citations
,
January 2022 in “Life” Tissue engineering could be a future solution for hair loss, but it's currently expensive, complex, and hard to apply in real-world treatments.
2 citations
,
September 2014 in “Journal of evolution of medical and dental sciences” Most HIV patients in the study showed skin and mucous membrane issues, with oral thrush being the most common.
51 citations
,
April 2013 in “Journal of Investigative Dermatology” Hair follicle stem cells rely on nearby blood vessels for their maintenance and function.
1 citations
,
October 2012 in “Elsevier eBooks” Skin stem cells can help improve skin repair and regeneration.
151 citations
,
May 2014 in “American Journal of Clinical Dermatology” Effective treatments for male pattern baldness include oral finasteride and topical minoxidil, while topical minoxidil is best for female pattern baldness.
136 citations
,
April 2016 in “Dermatologic Surgery” PRP treatment helps hair growth and density in androgenetic alopecia patients.
87 citations
,
September 2016 in “Dermatologic Surgery” PRP shows potential for treating female hair loss, but more research needed.
66 citations
,
June 2015 in “Aesthetic Plastic Surgery” Platelet preparations generally show positive effects on wound healing and facial rejuvenation, but more thorough research is needed to confirm their effectiveness.
64 citations
,
March 2017 in “Journal of Cosmetic Dermatology” PRP treatment may increase hair density and reduce hair loss, but more research is needed.
29 citations
,
January 2018 in “International Journal of Trichology” PRP treatment helps hair growth and density with 70.7% success, but more research needed.
25 citations
,
July 2017 in “Journal of Stomatology, Oral and Maxillofacial Surgery” PRP injections help regrow hair, reduce hair loss, and increase hair thickness, but effects decrease without ongoing treatment.
20 citations
,
October 2018 in “Aesthetic Plastic Surgery” PRP shows promise for improving facial wrinkles, skin elasticity, and hair growth, but more research is needed to standardize its use and understand its effects.
18 citations
,
November 2016 in “Journal of Oral and Maxillofacial Surgery” Platelet-Rich Plasma (PRP) treatment can potentially increase hair density and quality in people with hair loss, but more research is needed to confirm its effectiveness.
12 citations
,
March 2019 in “Journal of Cosmetic Dermatology” PRP injections improve hair thickness and density in hair loss, but more research needed.
4 citations
,
March 2016 in “Dermatologic Surgery” PRP treatment increased hair density, especially in men and younger patients with AGA.
2 citations
,
March 2023 in “Biomedicine & pharmacotherapy” Platelet lysate effectively promotes hair growth and improves hair thickness in people with androgenetic alopecia.
September 2025 in “Journal of the Egyptian Womenʼs Dermatologic Society” Using platelet-rich plasma for storing hair grafts improves hair regrowth and density.