October 2025 in “Clinical Dermatology Review” Sildenafil may help with some skin conditions and hair growth, but more research is needed.
October 2023 in “Nutrients” Millet and wheat extracts may improve hair health and promote growth.
May 2023 in “Journal of Ethnopharmacology” The wild garlic plant, Allium macrostemon Bunge, can promote hair growth and could potentially be used to treat hair loss.
45 citations
,
April 2019 in “International Immunology” The study concluded that immune cells attacking hair follicles cause hair loss in alopecia, with genetics and environment also playing a role, and highlighted the potential of certain treatments.
9 citations
,
March 2019 in “Molecular & cellular proteomics” Reductive stress messes up collagen balance and alters cell signaling in human skin cells, which could help treat certain skin diseases.
21 citations
,
January 2020 in “Pharmaceutical Biology” Salvia plebeia extract can stimulate hair growth.
April 2025 in “Journal of Investigative Dermatology” Fibronectin is essential for hair follicle regeneration by supporting stem cells.
102 citations
,
July 2020 in “International journal of molecular sciences” Hormones like testosterone and estrogen significantly affect hair growth and structure.
49 citations
,
March 2004 in “Journal of Investigative Dermatology” The hHa7 gene is regulated by androgens in certain body hair, not scalp hair.
5 citations
,
January 2021 in “Frontiers in Cell and Developmental Biology” Inhibiting Zyxin may help treat androgenetic alopecia by promoting hair growth.
1 citations
,
November 2024 in “EMBO Reports” Deleting Gpr54 speeds up hair growth and regeneration.
January 2025 in “Yonsei Medical Journal” Mastic gum and peppermint extracts may promote hair growth and health.
September 2023 in “Journal of Nutrition and Metabolism” One Ashwagandha extract may help protect cells with its antioxidant properties, while another could promote hair growth.
173 citations
,
August 2015 in “Developmental cell” The study identified unique genes in hair follicle cells and their environment, suggesting these genes help organize cells for hair growth.
23 citations
,
January 2017 in “Journal of Functional Biomaterials” Biomaterials can help reduce skin scarring and improve wound healing.
September 2025 in “PubMed” Mechanical stimulation and new therapies show promise for hair regrowth.
May 2024 in “Regenerative Therapy” Dendrobium officinale polysaccharide helps hair growth by activating the WNT signaling pathway.
14 citations
,
July 2015 in “International Journal of Molecular Sciences” S-Methylmethionine sulfonium can protect skin from UVB damage.
6 citations
,
October 2020 in “Frontiers in cell and developmental biology” WWOX deficiency in mice causes skin and fat tissue problems due to disrupted cell survival signals.
March 2026 in “International Journal of Molecular Sciences” Grateloupia angusta extract helps heal wounds faster and improve skin repair.
51 citations
,
April 2020 in “Cells” Special cell particles from macrophages can help hair grow.
41 citations
,
July 1994 in “Journal of Dermatological Science” Hair follicle cells need complex interactions to fully differentiate.
5 citations
,
October 2020 in “Bioengineering & translational medicine” Researchers used a laser to create advanced skin models with hair-like structures.
August 2023 in “International Journal of Molecular Sciences” Human skin xenografting could improve our understanding of skin development, renewal, and healing.
November 2022 in “Bioengineering” The method can test hair growth products using a lab-made hair-like structure that responds to known treatments.
5 citations
,
October 2024 in “International Journal of Molecular Sciences” Piperonylic acid may help hair growth and treat hair loss.
5 citations
,
February 2021 in “Gels” HYDRO DELUXE BIO hyaluronic acid hydrogel is compatible with skin cells, may reduce inflammation, promote blood vessel growth, and protect against oxidative stress, suggesting it could help revitalize hair follicles.
1 citations
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August 2016 in “Hanbang an'i'bi'in'hu pibu'gwa haghoeji” YangHyulEum Gami-Bang extract may help treat hair loss.
February 2026 in “Preprints.org” Beer yeast vesicles may improve hair follicle health.
Platelet-derived extracellular vesicles can boost hair growth by activating a specific signaling pathway.