Acidic sandy clay damages archaeological hair the most, while dry conditions preserve but make it brittle; silicone oil can help keep the hair flexible.
199 citations
,
January 2004 in “The International Journal of Developmental Biology” Hair follicle growth and development are controlled by specific genes and molecular signals.
24 citations
,
November 2015 in “Scientific reports” Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.
1 citations
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January 2023 in “International journal of all research education and scientific methods” Hair analysis is better than urine and blood for detecting past drug use.
November 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Scientists made a mouse that shows how a specific protein in the skin changes and affects hair growth and shape.
June 2021 in “Journal of emerging technologies and innovative research” Onion and Aloe vera can help protect hair from damage caused by hair dyes.
193 citations
,
January 2015 in “International journal of trichology” Dermatologists need to understand hair products to treat hair and scalp issues better.
70 citations
,
February 2017 in “Dermatologic Surgery” Treatment with plasma rich in growth factors improved hair density and thickness for hair loss patients.
48 citations
,
May 2015 in “NPJ microgravity” A 3-month stay in space causes skin thinning, disrupts hair growth, and changes muscle-related genes in mice.
47 citations
,
June 2019 in “Nature Communications” Noncoding dsRNA boosts hair growth by activating TLR3 and increasing retinoic acid.
20 citations
,
July 2010 in “Skin Research and Technology” Aging makes hair thinner and rougher, with less clear edges.
11 citations
,
January 2018 in “Acta dermato-venereologica” Researchers found specific genes in the part of hair follicles that could help treat hair disorders.
7 citations
,
December 2020 in “Pharmaceutics” A mix of tocopherol acetate and L-menthol helps grow hair better than using them separately or using minoxidil.
May 2020 in “Research Square (Research Square)” Hair follicle stem cells may help treat strokes.
8 citations
,
May 2021 in “Bioengineering & translational medicine” Hair growth environment recreated with challenges; stem cells make successful skin organoids.
150 citations
,
April 1999 in “Dermatologic Clinics” Laser hair removal effectiveness depends on targeting hair structures without harming the skin, and improvements require more research and expert collaboration.
10 citations
,
May 2020 in “Dermatology Research and Practice” Proteoglycans are important for hair growth, and a specific treatment can help reduce hair loss.
149 citations
,
July 2017 in “PLoS Biology” Hair follicle patterns form through a mix of self-organization and signaling interactions.
40 citations
,
February 2002 in “International Journal of Dermatology” Permanent hair dye damages hair but it mostly recovers after 8 weeks; using certain hair care products can help repair it.
56 citations
,
June 2015 in “Nature Protocols” Two-photon microscopy helps observe hair follicle stem cell behaviors in mice.
33 citations
,
September 2019 in “Dermatologic Surgery” Using a special stem cell formula on the scalp once a month for six months helped people with hair loss grow more hair.
33 citations
,
September 2016 in “British journal of dermatology/British journal of dermatology, Supplement” Human hair follicle dermal cells can effectively replace other cells in engineered skin.
32 citations
,
May 2018 in “Cell Cycle” Melatonin helps Cashmere goats grow more hair by affecting certain genes and cell pathways.
26 citations
,
September 2018 in “Colloids and Surfaces B: Biointerfaces” A new liposome treatment helps heal deep burns on mice by improving hair regrowth and reducing scarring.
22 citations
,
May 2021 in “Nature Communications” Tissue stiffness affects hair follicle regeneration, and Twist1 is a key regulator.
19 citations
,
January 2009 in “International review of cell and molecular biology” Hair's strength and flexibility come from its protein structure and molecular interactions.
18 citations
,
February 2015 in “Acta Crystallographica Section D: Structural Biology” The study concludes that certain domains in Clostridium histolyticum enzymes are structurally unique, bind calcium to become more stable, and play distinct roles in breaking down collagen, with potential applications in medicine and drug delivery.
12 citations
,
January 1978 Friesian heifers take about 18 months to adapt to Kenya's climate, with hair changes not strongly linked to weight gain.
11 citations
,
October 2018 in “The Journal of Dermatology” Decorin helps keep hair follicle stem cells and may prevent age-related hair loss.
8 citations
,
November 2022 in “International Journal of Cosmetic Science” Human hair varies widely and should be classified by curl type rather than race.