4 citations
,
April 1955 in “Textile Research Journal” The effectiveness of reducing agents on hair fibers depends on their electrode potentials.
37 citations
,
October 2015 in “PeerJ” Perming significantly changes hair's molecular structure, while shampoo and conditioner do not.
1 citations
,
June 2021 in “Preprints.org” Hair relaxers and straighteners can be toxic to skin cells.
January 2012 in “한국미용학회지” Applying conditioner in the middle of a perm process reduces hair damage the most.
1 citations
,
June 2012 in “Revista Brasileira de Cirurgia Plástica” The procedure is effective for reducing the forehead despite potential for visible scars.
February 2025 in “Brazilian Journal of Hair Health” The Brazilian candle flame technique can damage hair by melting the cuticle and exposing the cortex.
Treating hair with 1M sodium hydroxide increases its friction, making it better for small medical knots.
September 2023 in “Journal of the American Academy of Dermatology”
2 citations
,
February 2016 in “Journal of sol-gel science and technology” A small molecule can strengthen fine hair, making it more resistant and natural-feeling.
18 citations
,
July 2015 in “Journal of cosmetic dermatology” Straightening and coloring hair, especially with sodium hydroxide, greatly increases protein loss.
January 2013 in “Sen'i Gakkaishi” Microfibrils are key for permanent waves, and hydrolyzed keratin improves wave formation and hair condition.
November 2017 in “Dermatologic Therapy” A new topical solution safely reduces hair shedding by 38% on average by tightening a muscle in the scalp.
December 2013 in “미용예술경영연구” Scalp treatments increased hair density and reduced hair loss in Telogen Effluvium patients.
1 citations
,
January 2015 in “Journal of Society of Cosmetic Chemists of Japan” Keratin film can effectively measure hair texture and adsorption properties.
sFRP4 partially inhibits hair regeneration, but the study needs clearer data analysis and better explanation of the process.
7 citations
,
January 2020 in “International Journal of Trichology” Coconut oil reduces hair damage and breakage more effectively than shampoos and conditioners.
55 citations
,
November 2010 in “Development” Hair follicles in mutant mice self-organize into ordered patterns within a week.
1 citations
,
June 2014 in “[Thesis]. Manchester, UK: The University of Manchester; 2014.” Chemical modifications can alter hair's stability and flexibility, with hydrophobic interactions helping maintain structure in humid conditions.
A protein called sFRP4 can partly inhibit hair growth.
January 2005 in “Seibutsu Butsuri/Seibutsu butsuri” Chemical treatments damage hair more than UV exposure, making it thinner and less flexible.
97 citations
,
January 2005 in “Wear” Human hair and skin friction vary by ethnicity, hair type, and environmental conditions.
1 citations
,
October 2009 in “International Journal of Cosmetic Science” A new keratin treatment can strengthen and protect aging hair.
Hydrophobic modifications make human hair less affected by water.
17 citations
,
July 2018 in “International Journal of Cosmetic Science” Keratin-based particles safely improve hair strength, smoothness, and heat protection.
4 citations
,
January 2017 in “International Journal of Dermatology” Scalp cooling can help reduce hair loss during chemotherapy.
May 2009 in “International Journal of Cosmetic Science” Permanent waving damages hair protein and weakens hair, especially with repeated treatments using sodium thioglycolate.
April 2025 in “Brazilian Journal of Hair Health” The Extra Gentle brush reduces hair breakage and soothes sensitive scalps.
June 2025 in “Cancer Management and Research” Improving hair health and managing conditions can enhance scalp cooling effectiveness in preventing hair loss during chemotherapy.
4 citations
,
January 2007 in “Sen'i Gakkaishi” Permed hair degrades faster and shows more damage after protease treatment compared to untreated hair.
16 citations
,
May 2017 in “Journal of cosmetic dermatology” An unhealthy scalp can damage new hair, but using ZPT shampoo can improve hair health.