March 2014 in “Journal of The American Academy of Dermatology” Vitamin D deficiency is common in temporary hair loss, and stress is often a suspected cause.
December 2006 in “The Brown University Psychopharmacology Update” Second-generation antipsychotics offer no significant benefit over first-generation ones for schizophrenia.
73 citations
,
January 2013 in “Annals of Dermatology” People with hair loss, especially those with certain types, have lower zinc levels, and zinc supplements might help.
9 citations
,
December 2014 in “Neuropsychiatric Disease and Treatment” People with first-time vitiligo have lower levels of a certain brain protein compared to healthy individuals.
December 2025 in “Frontiers in Endocrinology” High chromogranin A levels are linked to obesity and inflammation in polycystic ovary syndrome.
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.
5 citations
,
August 2018 in “Sexual Medicine Reviews” 5α-Reductase inhibitors do not consistently increase testosterone levels in the blood.
February 2026 in “Dermatology Reports” Trichoscopy helps diagnose and treat dissecting cellulitis early, preventing scarring.
54 citations
,
June 1985 in “American Journal of Dermatopathology” Minoxidil helps grow longer, thicker hair in bald scalps of stumptailed macaques, and early treatment is more effective.
46 citations
,
April 2016 in “Journal of Investigative Dermatology” New genes found linked to balding, may help develop future treatments.
40 citations
,
June 2011 in “Journal of biological chemistry/The Journal of biological chemistry” FA2H is essential for normal fur and sebum production in mice.
37 citations
,
January 2015 in “Evidence-based Complementary and Alternative Medicine” An extract from Quercus acutissima bark was found to reduce sebum production and block an enzyme linked to acne.
8 citations
,
January 2019 in “Annals of Dermatology” Bilobetin may help reduce acne by decreasing sebum production.
7 citations
,
September 2024 in “Scientific Reports” Sebum samples remain stable under various storage conditions, making them suitable for remote and at-home testing.
4 citations
,
January 2015 in “Journal of microbial & biochemical technology” Biotin helps regulate proteins in the blood, which may explain its role in hair growth.
2 citations
,
December 2016 in “Journal of Pakistan Association of Dermatology” Higher androgen levels are linked to more severe hair growth in hirsute women.
December 2025 in “Cureus” Higher IL-17A and IL-23 levels are linked to alopecia areata severity and could help in tracking and treating the disease.
December 2024 in “Asian Journal of Medical Sciences” Low iron levels may be linked to hair loss in women with chronic telogen effluvium.
1 citations
,
April 2015 in “Journal of Dermatology and Dermatologic Surgery” People with certain skin diseases have higher levels of the hormone prolactin in their blood.
May 2025 in “Journal of research in pharmaceutical science.” The herbal hair serum with hibiscus, flaxseed, and aloe vera improves hair smoothness and shine without harmful effects.
December 2024 in “Kufa Medical journal” Higher levels of IL-17A and IL-2 are linked to alopecia areata.
February 2024 in “Malahayati Nursing Journal” High androgen levels can cause hirsutism and increase inflammation.
83 citations
,
April 1992 in “Clinical Endocrinology” Having enough iron improves the effectiveness of a specific hair loss treatment in women.
September 2010 in “European Urology Supplements” Opioid use may lower PSA levels, suggesting a possible role in prostate cancer control; PSA testing is useful for detecting prostate cancer; serum triglycerides are not linked to prostate cancer risk; and higher urethral PSA levels may be associated with local hormone activity.
April 2026 in “Al-Kufa University Journal for Biology” Finasteride lowers cortisol and raises testosterone levels in rats.
128 citations
,
March 2006 in “American Journal of Pathology” Prolactin contributes to hair loss by promoting hair follicle shrinkage and cell death.
71 citations
,
January 2014 in “Journal of Proteome Research” Women with PCOS have different levels of certain fats and proteins in their blood, which could help diagnose the condition.
31 citations
,
February 2019 in “International Journal of Cosmetic Science” Caffeine applied to the scalp can protect hair follicles from UV damage.
17 citations
,
January 2013 in “Indian Journal of Pharmacology” High levels of the seizure medication sodium valproate can cause hair loss.
17 citations
,
August 2007 in “Bioorganic & Medicinal Chemistry Letters” A compound made by Pfizer can potentially stimulate hair growth and reduce oil production, making it a good candidate for topical use.