Hair can't be as strong as Rapunzel's because it's impractical to scale up due to defects.
84 citations
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April 2015 in “Cosmetics” Hair dyes vary in how long they last and how deeply they penetrate hair.
14 citations
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September 2016 in “Journal of Photochemistry and Photobiology B Biology” UV exposure damages hair, increasing thiols and altering protein structure.
1 citations
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August 2021 in “Frontiers in Genetics” Certain genes related to sulfur metabolism are more active during the growth phase of Cashmere goat wool, and melatonin might help this process.
February 2026 in “International Journal of Molecular Sciences” PDLLA filler can improve hair thickness and shine by reducing age-related hair decline.
15 citations
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August 2015 in “Scanning” Corkscrew and cigarette-ash-shaped hairs in tinea capitis are caused by internal hair degradation and external resistance.
349 citations
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January 2005 in “The FASEB journal” Human skin can make serotonin and melatonin, which help protect and maintain it.
1 citations
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August 2024 in “Polymers” Bacterial cellulose is a promising material for biomedical uses but needs improvements in antimicrobial properties and degradation rate.
Understanding genetics is crucial for treating heart and skin diseases.
65 citations
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February 2009 in “The journal of investigative dermatology/Journal of investigative dermatology” Anti-acne medications may work by reducing the activity of a protein involved in acne development.
21 citations
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December 2011 in “Chungara” Mummy hair's chemical composition may not accurately show ancient people's health due to environmental contamination.
10 citations
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March 2022 in “Communications biology” A new non-invasive method can analyze skin mRNA to understand skin diseases better.
3 citations
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August 2013 in “Stem cells” Certain inhibitors applied to the skin can promote hair growth by maintaining a key hair growth signal.
2 citations
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April 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” The conclusion is that analyzing RNA from skin oils is a promising way to understand skin diseases.
January 2016 in “SpringerBriefs in bioengineering” Genetic defects and UV radiation cause skin damage and aging.
196 citations
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May 2001 in “The journal of investigative dermatology/Journal of investigative dermatology” Sebocytes play a key role in controlling androgen levels in human skin.
4 citations
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January 2000 Piedraia hortae fungi dissolve both the outer and inner layers of 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.
Wound healing is complex and requires more research to enhance treatment methods.
153 citations
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October 2012 in “Skin Pharmacology and Physiology” Caffeine in cosmetics may reduce cellulite, protect skin, and stimulate hair growth, but more research is needed on its use and effects.
8 citations
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July 2022 in “Biomedicines” Autophagy helps keep skin healthy and may improve treatments for skin diseases.
2 citations
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December 2024 in “BMC Genomics” Key genes and pathways control sheep hair growth phases.
1 citations
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December 2024 in “Methods in molecular biology” Hair proteins are complex and provide valuable genetic and biological information.
November 2025 in “Journal of Natural Fibers” Human hair waste can be valuable in engineering and materials due to its unique properties.
February 2026 in “Optics” Stretching wool changes its structure and improves fiber alignment.
December 2025 in “Biopolymers” Heat worsens damage in chemically treated hair, especially bleached and straightened hair.
38 citations
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July 2020 in “EMBO journal” SIRT7 protein is crucial for starting hair growth in mice.
23 citations
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January 2023 in “Journal of Developmental Biology” Reptile skin protects and prevents water loss, helping them adapt to land.
13 citations
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September 2014 in “Journal of photochemistry and photobiology. B, Biology” UV radiation increases protein loss from hair and reduces hair protein quality.
4 citations
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February 2023 in “iScience” Korean long-tailed chickens have unique genes valuable for ornamental breeding.