Reducing nerve growth can help skin regenerate after birth.
93 citations
,
July 2006 in “Journal of Investigative Dermatology” K25, K27, and K28 are found in all inner root sheath layers of hair, while K26 is only in the cuticle.
51 citations
,
September 2012 in “Gene” The research identified a gene in sheep important for wool quality, which could help improve wool traits.
33 citations
,
March 2006 in “Seminars in cutaneous medicine and surgery” The document explains how to identify different hair problems using a microscope.
23 citations
,
January 2016 in “International Journal of Trichology” Women with female pattern hair loss have lower Vitamin D3 levels.
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.
30 citations
,
January 2023 in “EFSA journal” Adults should not consume more than 255 micrograms of selenium per day to avoid risk of hair loss and other side effects.
8 citations
,
June 2001 in “Journal of Biological Chemistry” A truncated protein linked to breast cancer may change cell adhesion.
7 citations
,
August 2021 in “Heliyon” Phyllotex™ extract was found to significantly promote hair growth and protect against hair loss.
6 citations
,
August 2022 in “International journal of molecular sciences” α-Phellandrene may help prevent hair loss by increasing growth factors and cell growth in hair cells through a specific signaling pathway.
6 citations
,
January 2018 in “PubMed” Heavy metals might contribute to hair loss in Telogen Effluvium.
June 2025 in “Frontiers in Bioengineering and Biotechnology” Recombinant collagen with nicotinamide boosts hair growth and health.
115 citations
,
November 2008 in “Proceedings of the National Academy of Sciences” Reptiles have genes similar to hair proteins, suggesting hair's genetic origins predate mammals.
The KRTAP36-2 gene in sheep affects wool yield.
February 2025 in “Animals” Amino acid-complexed trace minerals improve hair quality and activity in senior dogs.
13 citations
,
January 2015 in “International Journal of Trichology” Higher lead and cadmium, and lower zinc and iron levels in the blood might be linked to chronic hair loss in women.
2 citations
,
December 2022 in “Metabolites” Hair analysis shows low progesterone in anorexia patients, unchanged by short-term weight gain.
90 citations
,
December 2008 in “Journal of Investigative Dermatology” Thyroid-stimulating hormone affects hair follicles but doesn't change hair growth or color.
April 2016 in “Journal of Investigative Dermatology” Lymphoid-specific helicase (Lsh) is crucial for skin growth, change, and healing after injury.
65 citations
,
March 2017 in “Experimental Dermatology” Curly hair is influenced by specific genetic variations.
55 citations
,
February 2014 in “Journal of Structural Biology” Human hair has a complex, variable structure with a consistent matrix and double-twist pattern.
68 citations
,
August 2014 in “PeerJ” Human hair proteins vary by individual, body site, and ethnicity, useful for forensics.
90 citations
,
August 2004 in “Physiological Genomics” Dermal papilla cells help skin stem cells grow into hair.
87 citations
,
February 2000 in “Journal of Investigative Dermatology” Stem cells in developing hair follicles move to specific areas as they mature.
63 citations
,
April 2005 in “Mechanisms of development” Mice with too much Claudin-6 have skin barrier problems and abnormal hair growth.
37 citations
,
October 2015 in “PeerJ” Perming significantly changes hair's molecular structure, while shampoo and conditioner do not.
15 citations
,
January 1988 Hair follicles have unique proteins that vary by species and are influenced by nutrition.
2 citations
,
October 2022 in “Journal of structural biology” Older thin hair is not just thinner but also has different shape, structure, and stiffness.
1 citations
,
November 2022 in “International journal of trichology” A girl with a rare skin condition improved after one month of treatment with acitretin.
1 citations
,
July 2021 in “IntechOpen eBooks” Environmental factors can cause mutations in skin proteins, leading to skin disorders.