January 2002 in “Agritrop (Cirad)” This study found that mutations in exon 3 of the hr gene are strongly associated with congenital hypotrichosis in Valle del Belice sheep, suggesting a potential genetic link to the disorder.
March 2024 in “Journal of drugs in dermatology” This study evaluated the safety and effectiveness of HASHA, a new hyaluronic acid injectable, for chin augmentation in adults with chin retrusion. HASHA significantly improved chin appearance and satisfaction over 12 months compared to controls, with only mild or moderate transient adverse events.
5 citations
,
January 2012 in “Dermatology” This study found that an adapted version of the Hamilton-Norwood classification improves reliability in assessing pattern hair loss and could aid population studies examining its association with cardiovascular disease.
47 citations
,
August 2000 in “Endocrine Reviews” This review discusses idiopathic hirsutism, potential underlying mechanisms, and various therapeutic approaches without providing new clinical results, and emphasizes the need for further research on well-defined patient groups.
4 citations
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August 2024 in “Journal of Cosmetic Dermatology” This study reports that injecting a non-cross-linked hyaluronic acid compound into keratosis pilaris-affected skin led to significant improvements in roughness, redness, and overall skin condition, while maintaining a favorable safety profile, making it a promising alternative treatment option.
November 2015 in “Hair transplant forum international” This abstract does not provide new results; it discusses musculoskeletal disorders associated with hair transplantation surgeries and emphasizes the need for ergonomic adjustments to reduce practitioner strain.
5 citations
,
August 2021 in “Journal of biological chemistry/The Journal of biological chemistry” This study observed sexually dimorphic effects of reduced Rdh10 on energy metabolism and muscle function in mice, with males experiencing decreased endurance and females showing increased endurance on a high-fat diet.
4 citations
,
October 2007 in “PubMed” This study found that the PQ-70 shampoo formulation demonstrated the highest Hair Humidity Resistance Factor, indicating superior anti-frizz performance compared to other tested shampoos.
December 2025 in “Aesthetic Cosmetology and Medicine” This study reported that platelet-rich fibrin (iPRF) therapy may improve scalp health and hair appearance in women, showing beneficial changes in scalp hydration, redness, oiliness, and hair density, thickness, and loss.
20 citations
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April 1999 in “British journal of plastic surgery” This study found that using a ruby laser for hair removal resulted in a significant average reduction of 56.4% in hair density among participants dissatisfied with other methods.
March 2026 in “American Journal of Clinical Dermatology” In this study, ritlecitinib 50 mg produced clinically meaningful improvements in scalp hair regrowth over three years for patients aged 12 and older with severe alopecia areata, with 65.1% showing substantial hair regrowth and 31.2% achieving complete regrowth, while also maintaining a consistent safety profile.
PTHrP is important for bone formation and may be targeted for osteoporosis treatment and longevity therapies.
3 citations
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July 2021 in “Aesthetic Plastic Surgery” This case series observed that the combination of platelet-rich plasma and fat grafting improved hair quality and density in patients with non-scarring alopecia, with effects visible by 12 weeks and sustained up to one year.
July 2025 in “The Journal of Dermatology” This study identified common and unexpected adverse events associated with ritlecitinib in real-world use, providing insights into its safety profile for treating severe alopecia areata.
March 1997 in “Hair transplant forum international” This abstract reports on the 1997 meeting of the American Society of Hair Restoration Surgeons and the American Academy of Cosmetic Surgery, and it contains no new research findings.
8 citations
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June 2023 in “Acta Biochimica et Biophysica Sinica” In this study, a subcutaneous injection of recombinant RSPO1 was found to activate hair follicle stem cells and enhance hair regeneration in mice by stimulating the Wnt/β-catenin signaling pathway, suggesting its potential as a treatment for hair loss.
2 citations
,
December 1994 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” This study concluded that a regimen of transdermal estradiol and oral medroxyprogesterone acetate effectively reduces hirsutism while minimizing side effects in women with polycystic ovary syndrome.
1 citations
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October 2018 in “International research journal of pharmacy” This study found that ethanol extract and n-hexane fraction of rampai leaves may stimulate hair growth in rabbits, showing potential as an anti-alopecia treatment.
13 citations
,
August 2000 in “Blood” This article discusses the evaluation of minimal residual disease in childhood acute lymphoblastic leukemia using molecular methods and reports no new findings.
September 2025 in “International Society of Hair Restoration Surgery” This article discusses governance updates by the American Board of Hair Restoration Surgery to improve transparency and professionalism, but it reports no new research findings.
June 2022 in “Plastic and reconstructive surgery. Global open” This study found that platelet-rich plasma treatment significantly improved patients' quality of life and emotional well-being 3-5 months after treatment for hair loss.
January 2022 in “Springer eBooks” This review discusses platelet-rich plasma therapy for hair restoration and reports no new clinical results.
33 citations
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May 2006 in “Journal of Investigative Dermatology” This study found that high levels of parathyroid hormone-related protein expression can result in the production of shorter hair shafts, likely through effects on angiogenesis.
48 citations
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March 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” This study observed that retinoic acid biosynthesis and signaling in hair follicles have a spatial and temporal regulation linked to distinct stages of the hair cycle in mice.
January 2026 in “Journal of Materials Chemistry B” This study concluded that the KNPs@M/G microneedle system offers a promising strategy for treating radiation-induced skin injury by promoting antioxidative, anti-inflammatory, and regenerative effects.
July 2023 in “Clinical, cosmetic and investigational dermatology” In this study, reflectance confocal microscopy was used to diagnose periorificial dermatitis, revealing specific skin changes such as hair follicle dilatation, increased vascular density, and inflammation, which help distinguish it from similar conditions.
3 citations
,
April 2019 in “Hormone and Metabolic Research” This study found that women with polycystic ovary syndrome have higher insulin resistance and lower serum high-molecular weight adiponectin, which may play a role in the condition's pathogenesis.
9 citations
,
May 2021 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” This study suggests that topical minoxidil may be a promising treatment for isolated autosomal recessive woolly hair due to LIPH mutations, although effective treatments are not yet established.
17 citations
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October 2017 in “Journal of cosmetic and laser therapy” This literature review reports that laser-assisted hair removal may improve psychological well-being in women with PCOS, emphasizing its effectiveness and safety when conducted by trained professionals.
72 citations
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October 2009 in “The FASEB journal” This study found that thyrotropin-releasing hormone (TRH) acts as a potent stimulator of hair growth in human scalp hair follicles, promoting elongation and prolonging the anagen phase.