23 citations
,
January 2011 in “Surface and interface analysis” Chemical treatments and UV radiation severely damage the lipid layer on hair.
19 citations
,
January 2011 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.
36 citations
,
December 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.
30 citations
,
December 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.
15 citations
,
January 1992 in “Sen'i Gakkaishi” The Cell Membrane Complex in hair has both water-attracting and water-repelling layers.
92 citations
,
November 2015 in “Journal of Lipid Research” Skin fat helps with body temperature control and has other active roles in health.
January 2023 The document concludes that understanding hair's composition and the effects of treatments can lead to better hair care products.
425 citations
,
August 2002 in “BioEssays” The cornified cell envelope forms a protective barrier in skin and hair, using specific proteins and lipids to maintain effectiveness.
132 citations
,
November 2007 in “European journal of pharmaceutics and biopharmaceutics” The microemulsion delivered the dye deeper into the skin than the cream.
November 2022 Water and fatty acids affect hair's surface differently based on hair damage, and models can help understand hair-cosmetic interactions.
3 citations
,
September 1989 in “Journal of Investigative Dermatology” Methyl caprate greatly increases drug absorption through the skin and is better than other enhancers.
28 citations
,
March 2014 in “International Journal of Nanomedicine” New lipid nanoparticles show promise for delivering hair loss treatments but need improvement for better skin penetration.
2 citations
,
January 2018 in “Elsevier eBooks” Lipid nanoparticles improve drug delivery through the skin, offering stability, controlled release, and better compatibility with skin.
1 citations
,
June 2019 in “International Journal of Applied Pharmaceutics” Nanostructured lipid carriers can effectively repair hair split-ends for over 3 days.
35 citations
,
November 2015 in “International Journal of Pharmaceutics” Tiny particles carrying roxithromycin can effectively target and deliver the drug to hair follicles without irritation.
May 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” Primary cilia affect the size and oil production of eye glands but not the oil's makeup.
2 citations
,
July 2023 in “Cosmetics” Surfactants in shampoos and conditioners remove some but not all lipids from hair, and more research is needed to understand their full impact.
10 citations
,
December 2016 in “International Journal of Cosmetic Science” A tough membrane between the outer and inner layers of human hair protects it from damage.
36 citations
,
October 2014 in “Langmuir” Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.
18 citations
,
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.
25 citations
,
October 2007 in “Forensic science international” Different hair cleaning methods caused varying levels of damage to the hair's outer layer.
140 citations
,
April 2009 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” Liposomes improve drug delivery and reduce skin irritation in dermatology.
April 2024 in “Research Square (Research Square)” 16-MHA can restore the barrier and moisture of damaged hair, making it similar to undamaged hair.
41 citations
,
November 2011 in “The Journal of Dermatology” Some hair loss disorders are caused by genetic mutations affecting hair growth.
36 citations
,
April 2020 in “Journal of Herbal Medicine” Herbal nano-formulations show potential for effective skin delivery but need more research.
21 citations
,
March 2017 in “Skin research and technology” Removing external lipids from hair reduces moisture and increases strength, while removing internal lipids decreases water permeability.
4 citations
,
November 2014 The skin protects the body, regulates temperature, senses touch, and makes vitamin D.
28 citations
,
January 2017 in “Critical Reviews in Therapeutic Drug Carrier Systems” Nanomaterials in biomedicine can improve treatments but may have risks like toxicity, needing more safety research.
28 citations
,
December 2010 in “Langmuir” Hair fibers interact through classical forces, which are influenced by treatments and products, important for hair care and other applications.
27 citations
,
August 2018 in “Therapeutic Delivery” Nanotechnology could make hair loss treatments more effective and reduce side effects, but more research is needed before it's available.