Vitamin D
aka
- calciferol
Research
research Incidence and prevalence of alopecia areata in the Australian primary care setting: A retrospective analysis of electronic health record data
The analysis found that alopecia areata, a hair loss condition, is not very common in Australia, affecting about 0.13% of people, with new cases most often seen in males aged 19 to 34 years.

research Efficacy of an Oral Ageratum Conyzoides Formulation on Increasing Hair Growth and Decreasing Hair Loss in Males and Females: A Randomised Double-Blind Placebo-Controlled Study
Ageratum Conyzoides, when taken orally, can effectively reduce hair loss and improve hair growth.
research Bioinformatic analysis of gene expression data reveals Src family protein tyrosine kinases as key players in androgenetic alopecia
Protein tyrosine kinases are key in male pattern baldness, affecting skin structure, hair growth, and immune responses.
research Cell Therapy for Androgenetic Alopecia: Elixir or Trick?
Stem cell therapies could be a promising alternative for hair loss treatment, but more research is needed to understand their full potential and safety.
research Evaluation of the Relationship between Favipiravir Use Status and Telogen Effluvium in Patients Diagnosed with COVID-19
Using Favipiravir, a COVID-19 treatment drug, likely doesn't cause hair loss.

research Androgenetic Alopecia: Therapy Update
There are many treatments for common hair loss, but more trials are needed to decide which are best.
research Endocrinology
The document concludes that inflammation markers can be used in diabetes, vitamin D3 affects immune pathways, hyperthyroidism changes hormone levels, androgen levels help diagnose Adrenocortical Carcinoma, erectile dysfunction is linked to diabetes, hypogonadism is common in HIV-infected males, and hormones can be biomarkers for various conditions.
research The frequency of fatty liver in patients with alopecia areata: A case–control study
There's no strong link between Alopecia Areata, a hair loss condition, and fatty liver, but more research is needed.
research Possible Association of Female-Pattern Hair Loss with Alteration in Serum 25-Hydroxyvitamin D Levels
research A systematic review of clinical trials using single or combination therapy of oral or topical finasteride for women in reproductive age and postmenopausal women with hormonal and nonhormonal androgenetic alopecia
research Female pattern hair loss: therapeutic update
research Melatonin in Dermatologic Allergic Diseases and Other Skin Conditions: Current Trends and Reports
Melatonin, the sleep hormone, can help treat skin conditions like dermatitis, hyperpigmentation, and scalp disorders, and may also aid in skin aging prevention and regeneration. However, it's not recommended for asthma due to its pro-inflammatory effect.
research
Combined microneedling with topical vitamin D3 or bimatoprost versus microneedling alone in the treatment of alopecia areata: A comparative randomized trial
research Autologous Platelet and Extracellular Vesicle-Rich Plasma as Therapeutic Fluid: A Review
Autologous Platelet and Extracellular Vesicle-Rich Plasma (PVRP) has potential in enhancing tissue regeneration and improving hair conditions, but its effectiveness varies due to individual differences.
research Oral Presentations: Abstracts of the Urological Society of Australia and New Zealand Annual Scientific Meeting, 25–28 February 2023, Melbourne, Australia
Urologists should monitor mental health in patients taking finasteride due to potential links to suicidal thoughts, adjusting dosage or stopping use if necessary. More research is needed to confirm if finasteride causes these thoughts.
research The Association of Serum Adipokines, Insulin Resistance and Vitamin D Status in Male Patients with Androgenetic Alopecia
research Study of the Thyroid Profile of Patients with Alopecia
People with hair loss conditions may also have thyroid disorders, but more research is needed to understand the connection.
research A comprehensive review of platelet-rich plasma for the treatment of dermatologic disorders
Platelet-rich plasma can increase hair density and may help treat some skin conditions, but it's costly, not FDA-approved, and needs more research.
research The Implication of Mechanistic Approaches and the Role of the Microbiome in Polycystic Ovary Syndrome (PCOS): A Review
Changes in gut bacteria can contribute to the development of Polycystic Ovary Syndrome (PCOS), affecting metabolism, immunity, and causing inflammation. Treatments may involve adjusting these factors.
research The Association between Sugar-Sweetened Beverages and Male Pattern Hair Loss in Young Men
Drinking lots of sugary drinks may increase the risk of hair loss in young men.