1 citations,
January 2017 in “PubMed” All five hair fiber products improved appearance but didn't stick to completely bald areas.
10 citations,
January 1980 in “Ultrastructural pathology” Green hair has high copper levels due to contaminated water and damaged hair cuticles.
4 citations,
February 2007 in “Journal of the European Academy of Dermatology and Venereology” The study suggests silicon might be important for healthy hair, as less silicon was found in people with hair loss.
4 citations,
May 2017 in “Pediatric Dermatology” The study found that Short Anagen Syndrome results in short hair growth not due to hair fragility, and hair may grow longer after puberty.
2 citations,
January 1986 in “PubMed” PIXE is an effective method to analyze hair's elemental composition.