14 citations,
August 2013 in “Facial Plastic Surgery Clinics of North America” Some nonsurgical hair loss treatments are effective, especially if started early.
211 citations,
April 2013 in “Development” More dermal papilla cells in hair follicles lead to larger, healthier hair, while fewer cells cause hair thinning and loss.
61 citations,
April 2012 in “British Journal of Dermatology” Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.
45 citations,
January 2012 in “Experimental Dermatology” Human hair follicles switch between active and resting phases unpredictably.
40 citations,
December 2011 in “British Journal of Dermatology” Women's hair generally gets thinner and less dense starting in their mid-thirties, with hair loss becoming more common as they age due to both genetics and environment.
21 citations,
October 2011 in “PloS one” Certain molecules in hair change with age and could be used for cosmetic treatments.
15 citations,
February 2011 in “Journal of Tissue Engineering and Regenerative Medicine” The best method for transplanting skin cells to regenerate hair follicles is the Hemi-vascularized sandwich method, as it produces more mature follicles and promotes hair growth.
20 citations,
July 2010 in “Skin Research and Technology” Aging makes hair thinner and rougher, with less clear edges.
21 citations,
July 2010 in “International Journal of Cosmetic Science” Older people's hair becomes less shiny because it gets more uneven and curved.
5 citations,
February 2009 in “International Journal of Cosmetic Science” Coenzyme Q10 helps reduce aging in human hair.
759 citations,
February 2009 in “Current Biology” Hair follicles are complex, dynamic mini-organs that help us understand cell growth, death, migration, and differentiation, as well as tissue regeneration and tumor biology.
126 citations,
January 2009 in “International Journal of Trichology” Oxidative stress contributes to hair graying and loss as we age.
210 citations,
May 2006 in “The FASEB journal” Oxidative stress causes hair to gray by damaging and killing pigment cells.
417 citations,
September 2005 in “PLoS biology” Understanding gene expression in hair follicles can reveal insights into hair growth and disorders.
71 citations,
August 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Hair keratin-associated proteins are essential for strong hair, with over 80 genes showing specific patterns and variations among people.
414 citations,
August 2005 in “Nature” Activating TERT in mice skin boosts hair growth by waking up hair follicle stem cells.
33 citations,
April 2005 in “British Journal of Dermatology” Aging alone barely affects the number of hair follicles, meaning hair loss is minimal without other conditions like androgenetic alopecia.
581 citations,
October 1998 in “Journal of The American Academy of Dermatology” Finasteride safely and effectively treats male pattern hair loss, but may cause reversible sexual issues and harm male fetuses.
192 citations,
March 1998 in “British Journal of Dermatology” Minoxidil boosts growth factor in hair cells, potentially promoting hair growth.