4 citations
,
January 2014 in “The Scientific World Journal” Red deer antler extract helps hair grow by extending the growth phase and increasing cell growth in hair follicles.
1 citations
,
July 2025 in “JCI Insight” Hair follicle stem cells help maintain skin health by moving to and supporting the skin's surface layers.
1 citations
,
January 2009 in “Journal of Dermatology and Venereology” Cells from the upper hair follicle grow more actively, suggesting stem cells may be located there.
May 2023 in “Journal of Investigative Dermatology” Blocking DPP4 can potentially speed up hair growth and regeneration, especially after injury or in cases of hair loss.
November 2022 in “Journal of Investigative Dermatology” Growth hormone-releasing hormone (GHRH) boosts hair growth and human scalp hair follicles have their own growth hormone system.
July 2022 in “Journal of Investigative Dermatology” Blocking DPP4 can help activate hair growth and improve hair regeneration.
April 2019 in “Journal of Investigative Dermatology” Activating the Sonic hedgehog pathway can help regenerate hair follicles during wound healing in mice, potentially improving regeneration after injury.
December 2017 in “Elsevier eBooks” Vitamin D receptor is crucial for hair growth, not vitamin D itself.
April 2016 in “The journal of investigative dermatology/Journal of investigative dermatology” BMP signaling controls hair growth and skin color.
June 2010 in “The Knowledge Bank (The Ohio State University)” Inhibiting retinoic acid activates WNT signaling, potentially aiding hair disorder and skin cancer treatments.
118 citations
,
December 2003 in “Mechanisms of Ageing and Development” Thymosin β4 helps heal wounds, grow hair, and improve blood vessel formation.
7 citations
,
December 2010 in “대한의생명과학회지” Hair growth after depilation increases skin thickness, mast cell counts, and cell activity.
April 2017 in “Journal of Investigative Dermatology” Certain compounds can protect hair cells from aging and promote growth.
47 citations
,
August 2016 in “Fitoterapia” Some herbs and their components might help treat hair loss by affecting various biological pathways, but more research and regulation are needed.
January 2011 in “Padua Research Archive (University of Padua)” Local estrogen synthesis in skin may improve wound healing.
July 2025 in “Journal of Investigative Dermatology” Ritlecitinib reduces alopecia areata symptoms by blocking JAK3/TEC signaling and T-cell activity.
4 citations
,
June 2021 in “Basic and Clinical Neuroscience Journal” Rat hair follicle stem cells can improve nerve repair and muscle function after injury.
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Silybum marianum extract, Manganese PCA, and Lespedeza capitata extract may help with hair growth and anchorage, potentially aiding in hair loss treatment.
November 2022 in “Journal of Investigative Dermatology” The extract of Silybum marianum, Manganese PCA, and Lespedeza capitata can boost hair growth and extend the growth phase when combined in a serum.
9 citations
,
September 2013 in “Journal of histochemistry and cytochemistry/The journal of histochemistry and cytochemistry” Matriptase is highly active in hair follicles and sebaceous glands, especially during hair growth phases.
232 citations
,
January 2002 in “Mechanisms of development” Different enzymes are active in different parts of developing mouse organs.
155 citations
,
December 2002 in “Journal of Investigative Dermatology” Thyroid-related genes are active in skin cells and may affect autoimmune conditions.
8 citations
,
January 2013 in “genesis” Zfp157 is active in many mouse tissues during development and in specific adult cells.
3 citations
,
January 2011 in “Journal of biologically active products from nature” The F1 herbal mixture grew hair well and could treat hair loss without the side effects of common treatments.
June 2025 in “British Journal of Dermatology” Segmented hair color changes can indicate active alopecia areata.
23 citations
,
January 2018 in “Elsevier eBooks” Nanoemulsions improve stability and delivery of active ingredients in cosmetics for skin and hair care.
12 citations
,
February 1997 in “British Journal of Dermatology” The enzyme type 1 5α-reductase is more active in the hair follicle's lower part than in the skin's outer layer.
326 citations
,
February 2009 in “The American journal of pathology” Lgr5 is a marker for active, self-renewing stem cells in the intestine and skin, important for tissue maintenance.
September 2017 in “Journal of Investigative Dermatology” The Siah1 and Siah2 genes are active in mouse skin development and hair growth, especially right after birth.
October 2024 in “Journal of Cutaneous Pathology” Compound follicles in folliculitis decalvans mainly have active hair follicles.