Collagen supplements may improve skin, hair, and nails, but more research is needed.
February 2026 in “Psychoneuroendocrinology” Hair cortisol concentration partly reflects HPA axis regulation but doesn't capture all its complexities.
December 2025 in “Applied and Computational Engineering” Hair dyes can be harmful, but risks vary by person and can be reduced.
September 2025 in “medRxiv (Cold Spring Harbor Laboratory)” Using Centella asiatica EV and growth factors improves scalp health and hair growth.
May 2025 in “Lithuanian University of Health Sciences” Different diets had little effect on guinea pigs' hair and health.
December 2024 in “Biomedical & Pharmacology Journal” Hair Tonic A, with white tea extract, is better for improving hair health.
June 2022 in “Genetic engineering & biotechnology news” A new hair loss treatment is being developed using reprogrammed stem cells to grow new hair follicles.
February 2020 in “VSNU Open Access deal” Hair cortisol levels change with age, starting high at birth, decreasing until age 6, then rising to adult levels by age 18.
June 2015 in “Majallah-i 'ilmī-i dānishgāh-i 'ulūm-i pizishkī va khadamāt-i bihdāshtī darmānī-i Hamadān” Low vitamin D levels are linked to hair loss in women.
January 2012 in “Trace Elements Science” Lead pollution from the mine harms children's IQ, growth, and health.
November 2025 in “Repositorio Comunidad Politecnico Grancolombiano” Milagros enterprise Group S.A.S. plans to expand globally by exporting its Professional Intensive Repair Mask to Mexico, France, and the U.S.
Genetic differences may influence male pattern hair loss in Russians.
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January 2013 in “International Journal of Cosmetic Science” Higher metal levels in hair are linked to poorer perceived hair health.
June 2026 in “Korean Journal of Food Science and Technology” The fermented soybean-lactobacillus complex can boost hair growth and follicle formation.
June 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Rice and guava leaf extracts can improve hair health and reduce hair fall.
September 2025 in “Biochemical and Cellular Archives/Biochemical and cellular archives” Herbal hair care products are effective, safe, and eco-friendly alternatives to synthetic ones.
January 2025 in “Yonsei Medical Journal” Mastic gum and peppermint extracts may promote hair growth and health.
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January 2017 in “JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH” A thorough approach is crucial for accurately diagnosing hair loss in children.
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January 2023 in “Dermatology practical & conceptual” COVID-19 diagnosis is linked to new or worsening hair diseases, with stress from the pandemic likely contributing.
April 2026 in “Journal of Experimental Psychopathology” Hair cortisol levels may not reliably indicate psychological distress.
January 2026 in “Open Science Framework” January 2026 in “Open MIND” January 2025 in “SSRN Electronic Journal”
December 2024 in “Journal of Population Therapeutics and Clinical Pharmacology” Rosemary and kalonji seeds can improve hair health and treat hair conditions.
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August 2011 in “Journal of The American Academy of Dermatology” Latanoprost 0.1% may effectively treat hair loss.
July 2025 in “Cosmoderma” The plant-based supplement improved hair, skin, and nail health and boosted well-being without side effects.
December 2023 in “International journal of research in dermatology” The ayurvedic hair oil is safe and effective for reducing hair fall, promoting hair growth, and improving scalp health.
November 2023 in “International Journal of Cosmetic Science” Wheat polar lipid complex reduces hair loss and improves hair growth in women.
June 2022 in “Research journal of topical and cosmetic sciences” Trichovitals® supplement improves hair thickness, reduces hair loss, and promotes hair growth in young adults.
January 2019 in “Journal of cosmetology & trichology” L-Cystine and L-Cystine with Kera-Diet® safely improved hair and nail quality in healthy women.