241 citations
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August 2005 in “Journal of Investigative Dermatology Symposium Proceedings” Dandruff and seborrheic dermatitis are caused by yeast feeding on scalp oils, leading to irritation and flaking.
181 citations
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January 2019 in “Cell” Innate lymphoid cells help control skin bacteria by regulating sebaceous glands.
37 citations
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October 2015 in “PeerJ” Perming significantly changes hair's molecular structure, while shampoo and conditioner do not.
9 citations
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January 2023 in “Langmuir” Solubility in skin changes with hydration, affecting chemical absorption.
6 citations
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December 2022 in “Frontiers in Pharmacology” Quercetin may help improve symptoms of polycystic ovary syndrome.
Testosterone pellets may help women's sexual function but have safety concerns and need more research.
June 2024 in “Molecules/Molecules online/Molecules annual” Platycladus orientalis flavonoids protect balding hair from UV damage and slow hair color change.
September 2023 in “The Journal of clinical endocrinology and metabolism” Genetic risk for PCOS can affect children's growth, metabolism, and development from early life into adulthood.
20 citations
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March 2013 in “Journal of Lipid Research” The research explains how a human enzyme binds and processes its substrate, which could relate to its role in biological functions and hair loss.
87 citations
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March 2014 in “Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids” Cholesterol sulfate buildup due to a genetic mutation disrupts the skin barrier, leading to the scaling skin seen in X-linked ichthyosis.
May 2025 in “International Journal of Cosmetic Science” Caffeine and adenosine in shampoo may boost hair growth and change scalp microbes and lipids.
12 citations
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January 1998 in “Endocrine journal” Saw palmetto extract can block the enzyme that converts testosterone in pig prostate cells.
November 2025 in “Communications Biology” Human hair contains many different molecules that change along its length, influenced by personal care products.
31 citations
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May 2019 in “Nature communications” Single Blimp1+ cells can create functional sebaceous gland organoids in the lab.
182 citations
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December 2007 in “BJCP. British journal of clinical pharmacology/British journal of clinical pharmacology” Hair follicles significantly increase the speed and amount of caffeine absorbed through the skin.
46 citations
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May 2009 in “Maturitas” Taking DHEA for a year is generally safe for postmenopausal women but may cause acne and more facial hair without improving metabolism or aging.
30 citations
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July 2022 in “Scientific Reports” Obesity and lifestyle strongly affect heart aging.
11 citations
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February 2003 in “Baillière's best practice & research. Clinical obstetrics & gynaecology/Baillière's best practice and research in clinical obstetrics and gynaecology” Acne and increased body hair in teenage girls are normal but severe cases may need hormone evaluation and treatment can prevent diabetes linked to PCO.
9 citations
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April 2019 in “Journal of structural biology” Hair's internal fibers are arranged in a pattern that doesn't let much water in, and treatments like oils and heat change how much water hair can absorb.
3 citations
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November 2014 in “Protein Expression and Purification” Scientists successfully purified a protein called Wnt3a, which is involved in processes like hair growth, but the overall yield was low, suggesting more work is needed to improve this.
2 citations
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May 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Stem cells help remove dead cells to keep tissues healthy by balancing cell replacement and clearance.
1 citations
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November 2020 in “Journal of The American Academy of Dermatology” GSK-36 downregulation with UTMD improves plaque stability in atherosclerosis treatment.
1 citations
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November 2025 in “Frontiers in Immunology” More research is needed to understand and manage rheumatoid arthritis better.
4 citations
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December 2018 in “Macedonian Journal of Chemistry and Chemical Engineering” A new method accurately measures amino acids in treated hair, showing bleaching reduces amino acids while protein treatments increase them.
204 citations
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May 2014 in “The Journal of Sexual Medicine” Hormone therapy for trans individuals is effective and generally safe in the short term.
53 citations
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May 1986 in “Clinics in endocrinology and metabolism” Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.
46 citations
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December 2007 in “International Journal of Cardiology” People with polycystic ovary syndrome may have a higher risk of heart problems due to abnormal nervous system control of their heart and blood pressure.
30 citations
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October 2020 in “Nature Communications” Finasteride irreversibly affects human steroid 5α-reductase 2, providing insight into its catalytic mechanism and disease-related mutations.
24 citations
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November 2023 in “NEWPORT INTERNATIONAL JOURNAL OF SCIENTIFIC AND EXPERIMENTAL SCIENCES” ART for HIV/AIDS can cause side effects but is crucial for managing the infection.
23 citations
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March 2019 in “Journal of Essential Oil Research” Rosemary's antioxidant content changes with the climate and season.