January 2020 in “한국공업화학회 연구논문 초록집” Encapsulated hair cells in a special gel can help regenerate hair follicles, potentially treating hair loss.
January 2004 in “Linchuang pifuke zazhi” All-trans retinoic acid helps amelanotic melanocytes in hair follicles develop and produce pigment while reducing their growth.
January 1989 in “Skin research” The hair regrowth tonic effectively increased hair count and was safe for treating male pattern baldness.
September 1978 in “PubMed” Chondroitin sulphate is more abundant than hyaluronic acid in skin and hair samples, except in gamma-keratosis.
25 citations
,
March 2017 in “Archives of Dermatological Research” Sinapic acid may help hair growth by activating a specific cell pathway.
10 citations
,
January 2012 in “International Journal of Cosmetic Science” Thioglycolic acid mainly affects the unordered areas in hair structure.
January 2023 in “Social Science Research Network” The document doesn't say if the treatment for hair loss worked.
92 citations
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June 2005 in “Journal of Investigative Dermatology” All-trans retinoic acid causes hair loss by increasing TGF-β2 in hair follicle cells.
85 citations
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April 2012 in “PLOS ONE” Valproic Acid helps regrow hair in mice and activates a hair growth marker in human cells.
68 citations
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March 2018 in “Biomaterials” Tiny needles with valproic acid can effectively regrow hair.
48 citations
,
June 2013 in “Journal of Dermatological Science” Valproic acid may help hair grow and could be a safe treatment for hair loss.
42 citations
,
January 2017 in “Stem cells international” Adding hyaluronic acid helps create larger artificial hair follicles in the lab.
37 citations
,
February 2014 in “Journal of Dermatology” Valproic acid increases hair count in men with hair loss.
29 citations
,
January 2016 in “Annals of dermatology/Annals of Dermatology” Arachidonic acid helps hair grow by increasing growth factors and improving follicle health.
29 citations
,
July 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” The enzymes Aldh1a2 and Aldh1a3 are involved in making retinoic acid in hair follicles and have different roles in hair growth.
26 citations
,
November 2016 in “European Journal of Clinical Pharmacology” Valproic acid helps delay hair loss and increases survival time for high-grade glioma patients undergoing radiation therapy.
17 citations
,
April 2021 in “Molecules/Molecules online/Molecules annual” Linoleic acid from Malva verticillata seeds may help treat hair loss by promoting hair cell growth and blocking baldness signals.
14 citations
,
July 2017 in “Fitoterapia” Oleanolic acid promotes hair growth by increasing cell proliferation through the Wnt/β-catenin pathway.
13 citations
,
January 2007 in “Epilepsia” Valproic acid can cause reversible hair curling and persistent hair thinning.
12 citations
,
July 2021 in “Scientific Reports” Glutamic acid helps increase hair growth in mice.
4 citations
,
May 2014 in “Pharmaceutical Biology” Glycyrrhizic acid from sweet licorice can effectively remove hair without skin irritation.
2 citations
,
June 2022 in “Cells” 3D cell cultures are better for testing hair growth treatments than 2D cultures.
1 citations
,
January 2020 in “PubMed” Azelaic acid helps protect hair cells from UV damage and encourages hair growth by increasing certain gene expressions and proteins.
High concentrations of retinoic acid kill hair follicle stem cells, while low concentrations may help treat skin diseases.
December 2025 in “Journal of the European Academy of Dermatology and Venereology” The correction does not change the study's main findings.
December 2025 in “Scientific Reports” Valproic acid helps hair follicle stem cells survive better in low oxygen and glucose conditions.
September 2025 in “Journal of Surfactants and Detergents” Shampoos with sodium lauroyl methylaminopropionate improve hair lubrication and reduce irritation.
July 2025 in “ACS Pharmacology & Translational Science” Maslinic acid from olive extracts promotes hair growth like minoxidil.
February 2025 in “Advanced Composites and Hybrid Materials” Glutamic acid microneedle patches promote better hair growth than traditional treatments.
December 2024 in “International Journal of Molecular Sciences” Linoleic acid is important for healthy skin and hair.