23 citations
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May 2010 in “Surface and interface analysis” Chemical treatments and UV radiation severely damage the lipid layer on hair.
128 citations
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March 2016 in “Advanced Pharmaceutical Bulletin” Smaller nanoparticles penetrate skin better, especially through hair follicles.
71 citations
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March 2016 in “PubMed” Smaller particles improve drug delivery through the skin.
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May 2010 in “Surface and interface analysis” 18-MEA is essential for hair's water resistance, and a conditioner with 18-MEA and SPDA can restore it.
52 citations
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January 2020 in “Scientific Reports” NLCs with manual massage greatly improve clobetasol delivery to hair follicles.
36 citations
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August 2011 in “Journal of dermatological science” Human hair has a protective lipid layer that can be damaged by moisture and treatments, affecting hair growth and health.
8 citations
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February 2022 in “International Journal of Dermatology” Lipids are crucial for healthy hair, protecting it from damage and breakage.
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November 1960 in “Experimental Biology and Medicine” Hair growth stages don't significantly change lipid content in mouse skin.
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November 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” The lipid in human hair follicles acts as a barrier, similar to the skin's lipid layer.
32 citations
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January 2017 in “PLoS ONE” Adiponectin boosts lipid production in skin cells, potentially helping treat skin conditions with low sebum.
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April 2018 in “Cosmetics” Lipids in Japanese hair help maintain glossiness and structure.
July 2022 in “International Journal of Applied Pharmaceutics” The optimized caffeine formula improved hair growth and penetrated all skin layers.
November 2021 in “Research Square (Research Square)” The new caffeine cream works better for hair growth than existing products.
September 2024 in “Medical Sains Jurnal Ilmiah Kefarmasian” Nanostructured lipid carriers improve anti-aging drug delivery and effectiveness in cosmetics.
1 citations
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October 2017 in “ecancermedicalscience” Breast cancer alters specific molecular structures in hair, which revert after cancer removal.
107 citations
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October 2014 in “PeerJ” Hair's molecular structure is mostly consistent, but genetic differences affect lipid types, which could help diagnose diseases.
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January 2016 in “Biointerphases” The hair's outermost surface has multiple layers of lipids and proteins.
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September 1989 in “Journal of Investigative Dermatology” Methyl caprate greatly increases drug absorption through the skin and is better than other enhancers.
January 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Ethosomal gels improve drug delivery through the skin, enhancing treatment effectiveness.
January 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Ethosomal gels improve drug delivery through the skin, enhancing treatment effectiveness.
The document concludes that understanding hair's composition and the effects of treatments can lead to better hair care products.
32 citations
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September 2018 in “Journal of pharmaceutical sciences” The model better predicts how water-loving and fat-loving substances move through the skin by including tiny pores and hair follicle paths.
6 citations
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January 2009 in “Elsevier eBooks” The skin has multiple layers and cells, serves as a protective barrier, helps regulate temperature, enables sensation, affects appearance, and is involved in vitamin D synthesis.
1 citations
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November 2004 in “International Journal of Cosmetic Science” External agents penetrate skin more easily in areas with fewer lipids, especially through hair follicles.
July 2013 in “Pharmaceutical Regulatory Affairs Open Access” Invasomes with 0.5% limonene greatly improve skin delivery of finasteride.
425 citations
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August 2002 in “BioEssays” The cornified cell envelope forms a protective barrier in skin and hair, using specific proteins and lipids to maintain effectiveness.
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August 2024 in “International Journal of Cosmetic Science” Particles stick better to healthy hair than damaged hair.
2 citations
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January 2000 in “Elsevier eBooks” The document explains how hair is studied in forensics to identify its source and its role in criminal investigations.
April 2021 in “Journal of Investigative Dermatology” Bacteria can help skin regenerate through a process called IL-1β signaling.
May 2026 in “International Journal of Creative and Open Research in Engineering and Management” Herbal hair oils should use effective carriers and advanced delivery systems for better results.