March 2012 in “Daehan hwajangpum hakoeji/Daehan hwa'jangpum haghoeji” This study observed that a cream containing functional compounds from medicinal plants increased collagen production in human skin, while a hair tonic enhanced hair growth in mice.
January 1994 in “Nihon Chikusan Gakkaiho” This study observed that mink dermal collagen fibrils undergo structural changes during the hair cycle, with increased fiber thickness and bundle density as minks grow.
April 2023 in “Journal of Investigative Dermatology” In this study, recombinant type III collagen was found to promote fibroblast proliferation and migration, suggesting potential anti-aging and repairing effects, although it was only effective in significantly inhibiting IL-6, not TNF-α, secretion.
56 citations
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December 1990 in “Differentiation” Growth factors can either promote or inhibit hair follicle cell growth and collagen breakdown.
42 citations
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April 2016 in “Plastic and reconstructive surgery/PSEF CD journals” This study found that hydrogels supplemented with fractionated platelet-rich plasma recruited more dermal-derived stem cells and accelerated healing, leading to hair growth and skin regeneration in rats.
24 citations
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December 2011 in “International Journal of Cancer” This study found that the collagen-binding fusion protein PTH-CBD significantly improved hair regrowth and follicle health in mice after chemotherapy, suggesting potential as a therapy for chemotherapy-induced alopecia.
22 citations
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May 2004 in “Tissue Engineering” This study found that collagen sponges with polyglycolic acid fibers support proper skin and hair follicle restructuring, suggesting potential usefulness for hair reconstitution research and clinical applications.
7 citations
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January 2011 Collagen XVIII is crucial for maintaining tissue structure and function in the brain, kidneys, and hair.
April 2023 in “Journal of Investigative Dermatology” The study identified increased IL-24 expression in keratinocytes and fibroblasts exposed to particulate matter, contributing to skin aging by promoting conditions similar to age-related changes such as increased MMP1 expression and decreased type I collagen production.
November 2024 in “Journal of Functional Foods” In this study, APC collagen peptides were observed to enhance hair elasticity and gloss in human hair follicles by increasing amino acid and lipid component levels, suggesting their potential benefits for improving hair qualities.
November 2022 in “Journal of Investigative Dermatology” This study found that marine-derived collagen peptides slightly promoted hair matrix proliferation and prolonged hair growth phase in human hair follicles ex vivo, suggesting potential benefits for hair loss treatment.
This study suggests that bovine and fish-derived collagen peptides may help maintain or prolong the hair growth phase and balance hair follicle stem cell populations, potentially benefiting aging and hair loss conditions like androgenetic alopecia.
July 2016 in “Cancer Research” This study developed a topical botanical lotion for managing chemotherapy-induced hair loss in cancer patients, reporting that it improved hair recovery times by 5-16 weeks, reduced inflammation, and enhanced scalp collagen levels with no observed side effects.
This study found that collagen VI is crucial for peripheral nerve function and regeneration, and its absence promotes abnormal hair regrowth after skin wounding in mice, revealing potential therapeutic targets for nerve injuries and hair loss.
July 2025 in “Journal of Investigative Dermatology” Collagen scaffolds in cell therapy can transform skin to be more resilient and pressure-responsive.
November 2023 in “International Journal of Pharmaceutics” This study found that a new transdermal drug delivery system using globefish skin collagen peptides and dissolving microneedles effectively promoted hair regrowth in mice with androgenetic alopecia by reducing inflammation and enhancing vascularization.
September 2016 in “Journal of dermatological science” This study found that COL17 plays a key role in regulating epidermal keratinocyte differentiation and proliferation, influencing the expression of differentiation markers and cellular growth in specific conditions.
June 2021 in “Journal of Cosmetic Dermatology” Laser treatment shows promise for hair growth, but needs further research.
1 citations
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March 2001 in “JOURNAL OF THE KYORIN MEDICAL SOCIETY” In this study, a collagen sponge with isogenic fibroblasts did not enhance skin graft survival or wound healing in rats, but it did promote re-epithelization, potentially inducing epithelial inclusion cysts.
63 citations
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March 2018 in “Experimental Dermatology” This review explores the physiological roles of collagen XVII in the epidermis, its involvement in stem cell maintenance, and its connections with signaling pathways, but it reports no new results.
36 citations
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October 2015 in “Journal of Cosmetic Dermatology” In this study, a new apple stem cell extract serum significantly improved signs of skin aging and enhanced cell metabolism in human senescent fibroblasts, showing visible effects after one week of use.
8 citations
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April 2014 in “Anti-Cancer Drugs” In this study, PTH–CBD displayed dose-dependent effects in reducing hair loss and enhancing hair regrowth in a mouse model of chemotherapy-induced alopecia.
4 citations
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March 2021 in “Journal of Histotechnology” In this study, researchers observed that hidradenitis suppurativa lesions were associated with reduced collagen and elastin, and increased neovascularization in areas with chronic inflammation.
July 2025 in “Advanced Science” In this study, researchers discovered two new signaling pathways that regulate how melanocytes establish pigment patterns in reconstituted hair-bearing skin, offering insights that could inform strategies to prevent hair greying.
September 2017 in “Journal of Investigative Dermatology” This study suggests that sweat glands may have an immune privilege similar to hair follicles, and disruptions in this could contribute to autoimmune skin diseases.
April 2016 in “Journal of The American Academy of Dermatology” A botanical lotion can increase scalp collagen and extend hair growth phase, potentially improving hair thinning issues.
August 2026 in “Pharmacological Research - Modern Chinese Medicine” In this study, topical applications of Agrimonia pilosa extract and agrimonolide demonstrated notable anti-inflammatory and wound healing benefits in animal models, significantly reducing inflammation and enhancing wound closure compared to controls. However, further research in humans is needed to confirm these preclinical findings.
August 2026 in “Clinical Cosmetic and Investigational Dermatology” This study found that Hydroxypinacolone Retinoate (HPR) may alleviate UV-induced skin photoaging by enhancing collagen synthesis, reducing degradation, and modulating inflammatory and oxidative responses in a dose-dependent manner.
In this study, researchers explored ubiquitination patterns in healthy human skin and CYLD cutaneous syndrome tumors, identifying extensive ubiquitin sites and differential protein ubiquitination linked to tumor pathology, highlighting the role of ubiquitination in tissue architecture and disease mechanisms.
November 2025 in “Preprints.org” In a rodent study, researchers found that oral phenytoin and spironolactone significantly mitigated 5-fluorouracil-induced hair loss and oxidative stress, suggesting potential therapeutic benefits for chemotherapy-induced alopecia and enhanced recovery.