22 citations
,
July 2011 in “EFSA journal” There is not enough evidence to support health claims about soy isoflavones.
58 citations
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October 2016 in “Journal of Investigative Dermatology” Activating Nrf2 protects human hair follicles from oxidative stress and helps prevent hair growth inhibition.
49 citations
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January 1998 in “International Journal of Molecular Medicine” Lipid peroxides can cause early hair loss by damaging hair follicles.
59 citations
,
November 2015 in “International Journal of Cosmetic Science” Oxidative stress damages hair and contributes to aging, and managing it can help maintain hair health.
May 2026 in “International Journal of Cosmetic Science” This study examined the effects of repeated exposure to ozonated water on hair fibre structure and integrity. The results showed that ozonated water caused oxidative modifications in hair proteins, lipids, and pigments, leading to changes in structural, chemical, and functional properties. Specifically, there were increases in cysteic acid-related bands and carbonyl groups, indicating protein and lipid oxidation. Morphological changes included cuticle fusion and increased cortical fluorescence. Mechanical properties were affected, with increased denaturation temperature and post-yield stiffness, suggesting altered crosslink density and keratin disruption. Despite these changes, alterations in shine and colour were minimal. The study concludes that ozone exposure results in a unique damage signature affecting both the cuticle and cortex, warranting further investigation into lipidomic and biochemical changes and the hair's response to additional stressors.
1 citations
,
December 2005 in “Al-Mağallaẗ al-ʻirāqiyyaẗ li-l-ṣaydalaẗ” Melatonin reduced oxidative stress and might improve hair growth in alopecia areata patients.
June 2024 in “Molecules/Molecules online/Molecules annual” Platycladus orientalis flavonoids protect balding hair from UV damage and slow hair color change.
24 citations
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January 2009 in “International Journal of Trichology” Sunlight exposure ages hair, making it brittle, stiff, and dry.
June 2023 in “Antioxidants” Lipids from Schizochytrium sp. help prevent hair loss by protecting hair cells from damage and promoting hair growth.
62 citations
,
July 2022 in “Science Immunology” TREM2 macrophages and unsaturated lipids contribute to acne inflammation.
August 2025 in “Applied Sciences” Peroxide-rich plasma-activated water is gentler on hair than nitrate-rich formulations.
19 citations
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January 2015 in “Current problems in dermatology” Ultraviolet rays damage hair, smoking may cause hair loss, and good nutrition is important for hair health, but genetics mainly decide hair thickness.
1 citations
,
July 2022 in “Functional foods in health and disease/Journal of functional foods in health & disease” Taking a probiotic supplement twice a day improved hair growth, skin hydration, and metabolic health in adults at risk of metabolic syndrome.
46 citations
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December 2010 in “PubMed” Tocotrienol supplements significantly increased hair growth in people with hair loss.
11 citations
,
April 1991 in “Journal of Veterinary Diagnostic Investigation” Shorthorn calves in Missouri experienced photosensitization, causing skin issues and liver damage, but they eventually recovered.
9 citations
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April 2016 in “Cutaneous and ocular toxicology” Alpha Lipoic Acid helps protect skin from smoking damage.
February 2008 in “Experimental dermatology” Oxidative stress plays a significant role in vitiligo, and both skin and non-skin cells may be involved.
18 citations
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August 2014 in “Lipids” Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.
4 citations
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January 2018 in “Cosmetics” Spin traps like PBN could protect skin from pollution and sunlight in cosmetics but need more research for safe use.
2 citations
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June 2022 in “Journal of Applied Pharmaceutical Science” 4-O-Methylhonokiol from Magnolia shows promise for hair growth, cancer, diabetes, and more, but needs better absorption.
3 citations
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November 2018 in “Journal of cellular physiology” Serenoa repens and N-acetyl glucosamine/milk proteins complex may help with hair growth and prevent hair loss.
2 citations
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April 2002 in “The journal of investigative dermatology/Journal of investigative dermatology” Vitamin D3 is important for hair growth and protecting skin from damage caused by long-term sun exposure.
252 citations
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January 2008 in “Trends in Endocrinology and Metabolism” Melatonin in the skin helps protect against damage from stress and UV rays, and could be used to treat certain skin conditions.
Sinapic acid and glabridin together help hair growth in androgenetic alopecia.
January 2025 in “Surgical & Cosmetic Dermatology” The gel may help hair regrow faster and improve skin after hair removal.
Equisetum debile extract may help with hair loss by inhibiting enzymes and reducing inflammation.
8 citations
,
March 2007 in “International Journal of Cosmetic Science” 6-O glucose linoleate helps human hair grow and produce lipids.
49 citations
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October 2017 in “Nutrients” Equisetum debile extract, especially the ethyl acetate type, may be a promising natural ingredient for anti-hair loss products.
36 citations
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May 2025 in “Antioxidants” Lipid peroxidation worsens skin diseases but may help treat cancer.
10 citations
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March 2005 in “International Journal of Cosmetic Science” Oxidation changes human hair by breaking down fats and forming new acidic groups, affecting how it interacts with conditioners and cosmetics.