The conclusion is that hair supplement ingredients may be unsafe and should be disclosed and proven safe before use.
1 citations
,
June 2024 in “Archives of Dermatological Research” Betulin oil doesn't stop hair loss or help regrow hair in hypothyroidism.
64 citations
,
March 2005 in “Journal of Investigative Dermatology” Brain-Derived Neurotrophic Factor (BDNF) slows down hair growth and promotes hair follicle regression.
5 citations
,
September 2018 in “International journal of genomics” Genetic mutations that disrupt homocysteine breakdown lead to increased damage in mouse hair keratin.
July 2021 in “PARIPEX INDIAN JOURNAL OF RESEARCH” Knuckle darkening can be an early sign of vitamin B12 deficiency.
April 2016 in “CRC Press eBooks” Biotechnology could lead to new hair growth products.
18 citations
,
June 2016 in “Clinical and Experimental Dermatology” Increasing isoleucine intake improved skin and health issues in an infant with maple syrup urine disease.
13 citations
,
April 1982 in “The Journal of Dermatology” Poly(ADP-ribose) synthesis is linked to skin cell differentiation.
12 citations
,
November 2014 in “Bioscience, Biotechnology, and Biochemistry” Genetically modifying a bacteria and changing its growth conditions significantly increased the production of a chemical called dipicolinic acid.
February 2024 in “Journal of medicinal food” The research found a way to develop hair growth materials by targeting a specific signaling pathway.
2 citations
,
July 1994 in “Journal of Dermatological Science” Grafted human scalp samples on mice can produce human hair, useful for studying hair genetics.
14 citations
,
November 2015 in “Annals of the New York Academy of Sciences” Changing the diet of mice lacking the enzyme CBS can affect symptoms related to the genetic condition.
January 2021 in “대한미용학회지” Boswellia may improve skin inflammation symptoms and positively influence hair growth in mice.
5 citations
,
January 1994 in “PubMed” 42 citations
,
January 2002 in “Skin Pharmacology and Physiology” Reconstructed skin models are useful for studying how skin processes certain chemicals.
1 citations
,
September 2017 in “Journal of Investigative Dermatology” Hair care products reduced hair roughness, a combination of Stemoxydine and Resveratrol increased hair density, fermented mackerel oil promoted hair growth, and genes TERT and Bmi-1 helped create new hair follicles.
October 2020 in “Our Dermatology Online” Skin changes and high vitamin B12 levels can be early signs of cancer.
14 citations
,
May 2019 in “Human gene therapy” MC-DNA vector-based gene therapy can temporarily treat CBS deficiency in mice.
6 citations
,
October 1988 in “Clinics in Dermatology” The molecular details of hair growth are not well understood.
111 citations
,
April 2000 in “British journal of dermatology/British journal of dermatology, Supplement” Thyroid hormone receptor β1 is found in human hair follicles and helps them survive.
July 2025 in “Journal of Investigative Dermatology” Acne involves increased lipid production and inflammation, affecting skin cell behavior and treatment resistance.
March 2022 in “Benha Journal of Applied Sciences” ULBP3 levels are higher in Tinea capitis patients and may help predict the disease's severity.
January 2016 in “Institutional Repositories DataBase (IRDB)” Sebaceous glands help study fatty acid transporters and binding proteins.
449 citations
,
December 2005 in “The Plant Cell” BIK1 gene helps plants resist some pathogens but makes them more vulnerable to others.
August 2018 in “Journal of The American Academy of Dermatology” People with telogen effluvium and scalp discomfort might have low vitamin B12 and could benefit from B12 supplements.
June 1996 in “Journal of Dermatological Science” 26 citations
,
January 1993 in “Dermatology” A rare case of isolated trichothiodystrophy was identified, marked by brittle hair with low sulfur content.
August 2024 in “Journal of Cosmetic Dermatology” Telogen effluvium is linked to deficiencies in iron, vitamin B12, and thyroid function.
4 citations
,
August 2017 in “Cosmetics” The extract reduced sebum production and promoted hair growth.
258 citations
,
July 2005 in “Journal of lipid research” DGAT1 enzyme helps make diacylglycerols, waxes, and retinyl esters.