January 2017 in “Clinical approaches and procedures in cosmetic dermatology” Cosmetic procedures can harm hair, but damage can be minimized with knowledge and care; however, once hair is damaged, it cannot be reliably repaired.
December 1991 in “Annals of the New York Academy of Sciences” Keratin proteins are crucial for hair structure and strength.
7 citations
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December 2011 in “Annals of anatomy” Involucrin helps strengthen the inner parts of human hair.
February 2023 in “Aesthetic Cosmetology and Medicine” Medicinal plants in nutricosmetics contain compounds that can improve skin and hair health.
Cornification is the process where living skin cells die to create a protective barrier, and problems with it can cause skin diseases.
October 2015 in “Cosmetic Dermatology” Hair straightening changes hair structure and can cause damage if done wrong, but improvements in the methods are expected to continue.
March 2014 in “CRC Press eBooks” Some nutrients and antioxidants may improve skin and hair health, but more research is needed to confirm these benefits.
March 2010 in “Cosmetic Dermatology” Hair straightening methods have advanced to improve effectiveness and reduce damage, but still rely on heat and chemicals.
February 1938 in “Journal of the American Medical Association” Washing can prevent cancer from lubricating oils, extreme body temperatures need more study, Sulfomid is not recognized, no reliable diphtheria carrier treatment except surgery, eyelid injuries should heal before repair, heterophile antibody test is specific for mononucleosis, chlorine inhalations for colds are outdated, and wheat germ is safe.
40 citations
,
May 2016 in “Proceedings of the National Academy of Sciences of the United States of America” Changes in keratin make hair follicles stiffer.
20 citations
,
September 2018 in “Journal of colloid and interface science” Modified keratin binds better to hair, especially bleached hair.
January 2025 in “Journal of Pharmacognosy and Phytochemistry” Plant-based pigments in shampoo offer vibrant colors and scalp benefits, meeting quality standards and providing a natural alternative to synthetic dyes.
December 2022 in “Deleted Journal” Sheep wool keratin solution safely and effectively promotes hair growth.
Water and fatty acids affect hair's surface differently based on hair damage, and models can help understand hair-cosmetic interactions.
226 citations
,
January 2002 in “Biological and Pharmaceutical Bulletin” A new method quickly extracts and identifies proteins from hair and other keratin sources.
193 citations
,
January 2015 in “International journal of trichology” Dermatologists need to understand hair products to treat hair and scalp issues better.
146 citations
,
May 2002 in “The American journal of pathology” Cathepsin L is essential for normal hair growth and development.
100 citations
,
March 2006 in “Journal of biological chemistry/The Journal of biological chemistry” Cystatin M/E strongly inhibits cathepsin V and cathepsin L, important for skin formation.
95 citations
,
February 2018 in “Dermatology and Therapy” Nutraceuticals may improve skin health and protect against aging, but more research is needed on their optimal use and possible health risks.
45 citations
,
December 2006 in “Biopolymers” Permanent waving weakens hair by altering its protein structure.
42 citations
,
January 2017 in “Genes” The gene KAP22-1 affects wool yield and fiber shape in sheep.
25 citations
,
May 2019 in “Heliyon” Hair treatments cause significant structural changes, especially with excessive heat, regardless of ethnicity.
14 citations
,
November 2020 in “International Journal of Biological Macromolecules” Mushroom-based scaffolds help heal skin wounds and regrow hair.
13 citations
,
December 2019 in “Nutrients” An apple-based supplement was found to stimulate hair protein production, which may help with hair growth.
7 citations
,
August 2018 in “Journal of cosmetic dermatology” Chemical hair straightening improves smoothness and shine but may cause side effects, suggesting a need for safer methods.
7 citations
,
February 1998 in “Polymer journal” Keratin structure in hair is stable at pH 5-6 but disrupts between pH 6-7.
5 citations
,
May 1983 in “Australian journal of biological sciences” Certain amino acid analogues can inhibit wool and hair growth and affect fiber strength.
May 2025 in “Journal of research in pharmaceutical science.” The herbal hair serum with hibiscus, flaxseed, and aloe vera improves hair smoothness and shine without harmful effects.
February 2025 in “Journal of Nutrients” Bone broth may improve health and prevent diseases.
January 2021 in “Middle East journal of applied sciences” Zinc is essential for plant growth and human health, but many soils lack enough zinc, affecting crops and potentially leading to health problems.