7 citations
,
March 2023 in “Journal of Investigative Dermatology” Low-intensity ultrasound may help protect hair follicles from chemotherapy-induced hair loss.
1 citations
,
January 1992 in “The Nishinihon Journal of Dermatology” Minoxidil sulfate did not enhance hair growth or cell proliferation at tested levels.
Collagen peptides may help maintain hair growth and could be beneficial for hair loss conditions.
210 citations
,
May 2006 in “The FASEB journal” Oxidative stress causes hair to gray by damaging and killing pigment cells.
81 citations
,
May 1986 in “Journal of Investigative Dermatology” 69 citations
,
January 2002 in “Journal of biomedical optics” Dyes can penetrate human skin and hair follicles up to 1.2 mm deep and the sebaceous gland can store dye; Indocyanine Green lotion was made for safe dyeing and monitoring.
13 citations
,
September 2019 in “EBioMedicine” sPLA2-IIA increases growth in hair follicle stem cells and cancer cells, suggesting it could be targeted for hair growth and cancer treatment.
July 2022 in “Journal of Investigative Dermatology” IL-15 helps maintain hair growth and protects the immune status of hair follicles.
January 2011 in “Padua Research Archive (University of Padua)” Local estrogen synthesis in skin may improve wound healing.
96 citations
,
December 1995 in “Journal of Investigative Dermatology” 38 citations
,
October 2001 in “British Journal of Dermatology” Keratin K6irs is a marker for the inner root sheath of hair follicles in mice and humans.
41 citations
,
March 1998 in “Archives of Dermatological Research” The enzyme that changes testosterone to a stronger form is mostly found in the part of the hair follicle called the dermal papilla.
105 citations
,
December 1998 in “Archives of Dermatological Research” Dermal papilla cells mainly drive blood vessel growth in hair follicles.
70 citations
,
April 2017 in “Lasers in surgery and medicine” Blue light promotes hair growth by interacting with specific receptors in hair follicles.
13 citations
,
January 2021 in “Histochemistry and Cell Biology” Cholesterol transport in hair follicles decreases from growth to regression phase.
6 citations
,
November 2010 in “Histochemistry and cell biology” The proteins transthyretin and megalin are more present in the growth phase of hair, suggesting they might affect hair health and growth.
6 citations
,
February 2009 in “Journal of Investigative Dermatology” January 2026 in “British Journal of Dermatology” Caffeine and DMG increase calcium influx in hair follicle cells without being toxic.
October 2025 in “International Journal of Cosmetic Science” USPlus® DERM may help hair growth and reduce hair loss.
November 2024 in “Stem Cell Research & Therapy” A new method improves the isolation of hair follicle cells for better hair growth research.
August 2024 in “Biomolecules & Therapeutics” A new compound, HTPI, promotes hair growth by protecting cells from damage and regulating energy use.
March 2024 in “Bioimpacts” 400 nm particles penetrate hair follicles best, but mouse models aren't fully reliable for human studies.
April 2023 in “Journal of Investigative Dermatology” ALRN-6924 can protect hair follicles from chemotherapy damage by temporarily stopping cell division.
November 2022 in “Journal of Investigative Dermatology” Fish-derived collagen may help hair grow longer and affect hair stem cells, while bovine collagen could benefit hair stem cell maintenance, potentially aiding in hair loss conditions.
March 1990 in “Journal of Dermatological Science” 6 citations
,
December 1990 in “PubMed” Keratinocytes in hair follicles differentiate similarly to skin cells, with specific patterns in different regions.
1 citations
,
November 2023 in “Journal of Investigative Dermatology” Farudodstat may effectively treat alopecia areata without harming hair follicles.
September 2024 in “Journal of the American Academy of Dermatology” Regulatory γδ T cells help protect hair follicles from alopecia areata and promote hair regrowth.
July 2024 in “Journal of Investigative Dermatology” Topical thyroid hormones may boost hair growth.
January 1997 in “Han-guk hyeonmigyeong hakoeji/Applied microscopy” The hair follicle's connection to connective tissue is weaker than the skin's.