As people age, certain enzymes in scalp glands decrease, affecting hair health.
January 2023 in “SSRN Electronic Journal” The fibroin-based formulation strengthens and repairs chemically damaged hair.
January 1991 in “Acta Dermato Venereologica” A new method effectively visualizes keratin in hair without harsh chemicals.
4 citations
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June 1990 in “PubMed” Hair protein differences help identify species and individuals in forensic science.
50 citations
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October 2007 in “Archives of Dermatological Research” 8 citations
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January 2018 in “Journal of cosmetic dermatology” Conditioners in hair dye reduce damage and improve combability.
6 citations
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February 1998 in “PubMed” MPA patients have lower zinc and manganese, higher copper, and similar iron levels in hair compared to healthy men.
January 1974 in “Nippon Nōgei Kagakukaishi/Nihon Nougei Kagakkaishi” Applying L-methionine and L-serine to the skin promotes the most hair growth.
65 citations
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May 2006 in “Journal of Structural Biology” Hair curliness is due to uneven distribution of different cortices within the hair fiber.
April 2018 in “Journal of Investigative Dermatology” Desmoglein 3 organization in cell connections changes without calcium, affecting cell adhesion.
4 citations
,
November 2024 in “The Journal of Steroid Biochemistry and Molecular Biology” December 2025 in “Drug Testing and Analysis” Hair testing is crucial for forensic science and public health.
2 citations
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November 2017 in “Histochemistry and Cell Biology” Polyamines are abundant in certain parts of rat hair follicles and may play a key role in hair growth.
62 citations
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January 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” A second domain of high sulfur KAP genes on chromosome 21q23 is crucial for hair structure.
63 citations
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December 1998 in “Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology” The study improved understanding of keratin fiber structure by showing consistent microfibril diameter but varying distances and electron density profiles.
4 citations
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January 2015 in “Journal of microbial & biochemical technology” Biotin helps regulate proteins in the blood, which may explain its role in hair growth.
July 2025 in “Agroindustrial Technology Journal” The 2% rosemary oil shampoo was the best overall.
6 citations
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January 2016 in “Pediatrics international” Japanese infants fed hydrolysate formula may have low biotin levels.
January 2001 in “대한피부과학회지” Hormone levels in women with androgenetic alopecia are similar to those without the condition.
January 2006 in “Analytical chemistry, an Indian journal” Two accurate methods were developed to measure finasteride in tablets.
3 citations
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September 2016 in “Clinical, cosmetic and investigational dermatology” Sphinganine can reduce hair loss and improve scalp health.
November 2025 in “Psychoneuroendocrinology” Hair proteomics could be a useful, non-invasive tool for identifying stress-related disorders.
April 1996 in “Journal of Dermatological Science” 51 citations
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January 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Scientists discovered a unique hair protein, KAP24.1, with a special structure, found only in the upper part of hair cuticles.
September 2018 in “Cumhuriyet medical journal” Women with more body hair tend to have thicker belly fat and more metabolic health issues.
1 citations
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August 2024 in “SAR Journal of Pathology and Microbiology” Many Iraqi women with hirsutism also have hypothyroidism and acne.
July 1995 in “Journal of Dermatological Science”
May 2017 in “Journal of The American Academy of Dermatology” The new baby shampoo and wash with stearic acid is safe and potentially effective for nourishing babies' skin.
2 citations
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January 1993 Trichohyalin is a versatile protein involved in hair and skin structure.