3 citations
,
April 1997 in “Developmental Dynamics” Trypsin slows hair growth and affects color by causing cell death in hair follicles.
October 2023 in “Nutrients” Millet and wheat extracts may improve hair health and promote growth.
April 2019 in “Journal of Investigative Dermatology” Calcium signals and SHH guide the direction of feather growth in chicken skin.
January 1992 in “Proceedings of the New Zealand Society of Animal Production” Ferret hair growth starts between 0 and 4 days after melatonin treatment, with cell growth peaking in the hair germ and declining as the hair matures.
158 citations
,
December 2002 in “Development” Msx2-deficient mice experience irregular hair growth and loss due to disrupted hair cycle phases.
130 citations
,
March 2014 in “Proceedings of the National Academy of Sciences of the United States of America” Epidermal Wnt/β-catenin signaling controls fat cell formation and hair growth.
36 citations
,
July 1996 in “The journal of investigative dermatology/Journal of investigative dermatology” Mice with the 'lanceolate hair' mutation have abnormal hair and skin similar to human Netherton's syndrome.
19 citations
,
January 2013 in “International journal of medical sciences” Increasing Wnt5a in mice skin delays hair growth but doesn't stop it.
4 citations
,
January 2013 in “Genetics and Molecular Research” VEGF and microvessel density are closely linked and peak during specific hair growth phases in cashmere goats.
1 citations
,
January 2015 in “Trace Elements in Medicine (Moscow)” A 3.75-year-old girl showed that different body organs can grow at different rates.
April 2026 in “Frontiers in Pharmacology” Erzhi Pill shows promise for health issues but needs better quality control and clearer usage guidelines.
December 2025 in “EMBO Reports” Cells communicate with neighbors to coordinate their development.
August 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” A new method using special materials can help regrow hair by creating small wounds.
Sensory neuron remodeling and Merkel-cell changes happen independently during skin maintenance.
Sensory neuron changes and Merkel-cell changes in the skin happen independently during normal skin maintenance.
Sensory neuron and Merkel cell changes in the skin happen independently during normal skin maintenance.
Sensory neurons and Merkel cells remodel at different rates during normal skin maintenance.
Sensory neuron remodeling and Merkel-cell changes in the skin happen independently.
Sensory neuron and Merkel-cell changes in the skin happen independently during normal skin maintenance.
Sensory neuron and Merkel cell changes in the skin happen independently during normal skin maintenance.
20 citations
,
January 1979 in “Journal of Experimental Zoology” Plucking hair speeds up the next hair growth, but hormones can change this timing.
2 citations
,
December 2024 in “BMC Genomics” Key genes and pathways control sheep hair growth phases.
14 citations
,
January 2009 in “Experimental Dermatology” Hair sheds gradually from the follicle, with readiness to shed indicated by less attachment material.
2 citations
,
March 2004 in “Journal of the American Academy of Dermatology” The 60-second timed hair count is a reliable and simple way to measure hair shedding at home, showing older women tend to shed more hair than younger women.
January 2023 in “Springer eBooks” Hair shedding that lasts over 6 months may need a closer look, but often just reassurance is enough.
October 2024 in “Experimental Dermatology” The belief about hair shedding phases is likely incorrect and needs reevaluation.
July 2025 in “International Journal of Trichology” Hair shedding increases at the end of summer due to seasonal changes.
February 2012 in “Clinical and Experimental Dermatology” Many adult women experience unexplained excessive hair shedding, often starting before age 40.
January 2015 in “Springer eBooks” Hair shedding that lasts more than 6 months may need medical tests, but often just reassurance is enough.
37 citations
,
January 2009 in “Dermatology” Healthy women tend to lose more hair in July and April, and the least in February.