33 citations,
April 2009 in “Clinical and Experimental Dermatology” Psychological factors like depression may be more important than zinc, folate, and vitamin B12 levels in causing scalp pain in people with hair loss.
32 citations,
March 2015 in “The Journal of Clinical Endocrinology & Metabolism” Alopecia areata is linked to thyroid autoimmunity but not type 1 diabetes.
29 citations,
December 2011 in “British Journal of Dermatology” A new hair treatment with caffeine and other ingredients makes hair thicker and less likely to break.
28 citations,
December 2005 in “Journal of cosmetic dermatology” Apple procyanidin applied to the scalp may help grow hair without side effects.
27 citations,
July 2009 in “Experimental and Clinical Endocrinology & Diabetes” Finasteride safely reduces excessive hair growth in women.
26 citations,
July 2016 in “PLOS ONE” Activating β-catenin in certain skin cells speeds up hair growth in mice.
23 citations,
October 2006 in “Journal of Investigative Dermatology” Men with baldness have higher levels of specific proteins, suggesting local hormone production may play a role in hair loss.
23 citations,
January 1994 in “Skin Pharmacology and Physiology” Hair loss in men and women is linked to high stress hormone levels and other hormonal imbalances, suggesting treatments should be customized to each person's hormones.
21 citations,
October 2006 in “International Journal of Dermatology” Asian hair is stronger and more damage-resistant than Caucasian hair due to a thicker cuticle layer.
19 citations,
November 2012 in “British Journal of Dermatology” Dopamine stops hair growth and pigment production in human scalp hair follicles.