January 2026 in “International Journal of Medical and All Body Health Research” This study compared the effects of intralesional triamcinolone acetonide (TAC) and platelet-rich plasma (PRP) in treating patchy alopecia areata in 60 patients. Both treatments improved hair regrowth, but TAC showed faster early reduction in hair loss severity. At 12 weeks, 46.7% of TAC patients showed excellent improvement compared to 33.3% of PRP patients. However, by 9 months, the efficacy of both treatments was similar. TAC was associated with side effects like skin atrophy and hypopigmentation, and a higher relapse rate (26.7%) compared to PRP (10%). PRP demonstrated a better safety profile and lower relapse rate, making it a viable steroid-sparing alternative for long-term management.
2 citations
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March 2024 in “Dermatologic Surgery” The chemical peel improved the appearance of hand spots safely and effectively.
14 citations
,
January 2012 in “Proteins” Electrostatic interactions mainly stabilize the binding of peptides to hair keratin.
118 citations
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May 2015 in “European journal of pharmaceutics and biopharmaceutics” The hydrogel with a 1:3 ratio of hydroxyethyl cellulose to hyaluronic acid is effective for delivering drugs through the skin to treat acne.
4 citations
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September 2012 in “Journal of dermatological science” The hair follicle's connective tissue is a key source of a certain collagen in human scalp skin.
27 citations
,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” 
4 citations
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April 2024 in “Cellular and Molecular Biology” Injectable platelet-rich fibrin is better than platelet-rich plasma for promoting hair growth.
19 citations
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September 2011 in “Journal of Dermatological Science” TGF-β1 increases androgen receptor activity in hair loss, but Hic-5/ARA55 can counter this effect.
31 citations
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August 2019 in “Regenerative Medicine” Human placenta hydrogel helps restore cells needed for hair growth.
Neuropeptides affect hair growth and could be used to control it.
November 2025 in “Journal of Investigative Dermatology” NUL-5 may boost hair growth by improving hair follicle health and structure.
February 2026 in “Archives of Dermatological Research” Microneedle-delivered polyglutamate effectively and safely improves hair growth in androgenetic alopecia.
7 citations
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January 2022 in “Scientific Reports” Acanthus ebracteatus Vahl. extract and verbascoside may help prevent hair loss and promote hair growth due to their anti-inflammatory properties and ability to protect against cell death.
3 citations
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April 2015 in “Current problems in dermatology” A more sensitive assay was developed to detect enzyme activity converting arginine to citrulline in hair follicles.
April 2025 in “Biomacromolecules” Hyaluronic acid microneedles with herbal extracts may help regrow hair.
1 citations
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April 2025 in “Journal of Cosmetic Dermatology” The serum improves facial skin quality safely and effectively.
82 citations
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May 2009 in “Development” EGF and KGF signalling prevent hair follicle formation and promote skin cell development in mice.
January 2012 in “RWTH Publications (RWTH Aachen)” pdHGF speeds up wound healing and hair growth.
April 2025 in “Pharmaceuticals” APA is a promising new compound for repairing damaged hair, outperforming Olaplex® in strength and elasticity.
32 citations
,
December 2019 in “The Journal of clinical investigation/The journal of clinical investigation” A protein called IL-36γ causes skin side effects from certain cancer treatments when combined with a common skin bacteria.
1 citations
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May 2003 in “The journal of investigative dermatology/Journal of investigative dermatology” A hormone affects hair growth, certain molecules may prevent skin damage, a skin disease is linked to immune cells, glycerol helps skin hydration, and psoriasis treatment trials need improvement.
321 citations
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January 2012 in “Cell stem cell” TGF-β2 helps activate hair follicle stem cells by counteracting BMP signals.
February 2026 in “Figshare” A new hydrogel treatment reduces inflammation and promotes hair growth in alopecia areata.
February 2026 in “Figshare” A new hydrogel treatment reduces inflammation and promotes hair growth in alopecia areata.
24 citations
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September 2018 in “Journal of Materials Science: Materials in Medicine” Hyaluronic acid-based HA2 hydrogel helps heal skin wounds better with less scarring.
January 2011 in “Archivio Istituzionale della Ricerca (Universita Degli Studi Di Milano)” New molecules can prevent cell death in hair follicles.
May 2005 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Truncated LTBP-1 disrupts TGF-beta signaling, affecting hair growth.
30 citations
,
November 2020 in “Journal of Advanced Research” Conditioned medium from keratinocytes can improve hair growth potential in cultured dermal papilla cells.
1 citations
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October 2025 in “Iranian journal of pharmaceutical research” Geranyl acetate can protect skin cells from damage and inflammation caused by para-phenylenediamine.
April 2018 in “Journal of Investigative Dermatology” A new treatment using AGED to modulate PPAR-γ shows promise for treating scarring hair loss by protecting and repairing hair follicle cells.