10 citations
,
January 2012 in “International Journal of Cosmetic Science” Thioglycolic acid mainly affects the unordered areas in hair structure.
13 citations
,
March 2017 in “Skin Research and Technology” Formaldehyde damages curly hair more than glyoxylic acid.
13 citations
,
September 2017 in “International Journal of Cosmetic Science” Thioglycerol treatment at pH 9.0 with ammonia causes less hair damage and better waving than thioglycolic acid.
January 2014 in “Sen i Gakkaishi” Liposome-encapsulated thioglycolic acid improves hair perming effectiveness and durability.
11 citations
,
June 2013 in “PubMed” The automated flat iron can permanently straighten hair without chemicals, especially at 154°C, and silicone improves the results.
July 2023 in “Nature Reviews Chemistry” A new method strengthens hair without using harmful chemicals.
1 citations
,
January 2013 in “PubMed” Permanent wave treatment with thioglycolic acid changes hair structure by altering disulfide bonds.
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.
3 citations
,
January 2004 in “Sen i Gakkaishi” DTDG in hair treatments reduces damage and preserves hair structure.
August 2021 in “Han'gug miyong haghoeji/Journal of the Korean society of cosmetology” Using natural polyphenol cross-linkers like tannic acid and green tea extract in perm treatments improves curling and protects hair.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” The herbal cream effectively smooths and straightens hair safely.
1 citations
,
June 2021 in “Preprints.org” Hair relaxers and straighteners can be toxic to skin cells.
January 2024 in “World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany” Polisorbate 20 is not suitable for curl creams due to instability.
January 2013 in “프로그램북(구 초록집)” Hair perms or treatments seem safe to use up to 3 to 4 times during pregnancy.
2 citations
,
January 2015 in “Sen'i Gakkaishi” Washing permed hair after using thioglycolic acid helps reform strong bonds, making hair stronger.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” The herbal cream effectively smooths and straightens hair safely.
1 citations
,
December 2022 in “Skin Research and Technology” The technique helps measure how hair styling ingredients affect hair's stiffness and flexibility.
4 citations
,
June 2022 in “Journal of cleaner production” New eco-friendly method strengthens and sets hair using light and causes less damage.
April 2025 in “International Journal of Cosmetic Science” A new hair perming method avoids damage and lasts longer than traditional methods.
August 2005 in “Microscopy and Microanalysis” Polymethylene wax in hair relaxers makes hair smooth and shiny with less damage.
1 citations
,
March 2023 in “Journal of Natural Fibers” A gentler, less damaging method for curling hair using tyrosine works well initially but fades after washing.
August 2021 in “International Journal of Research in Dermatology” Modern hair straightening improves manageability and strength while maintaining natural waves.
October 2021 in “Authorea (Authorea)” New hair perming method using tyrosine is gentler and can be done with a blow-dryer.
52 citations
,
February 2005 in “Biopolymers” Chemical hair straightening changes hair proteins and mostly fixes broken bonds.
3 citations
,
January 2021 in “ScienceAsia” Using an enzyme and keratin treatment can significantly repair and strengthen damaged hair.
December 2025 in “Biopolymers” Heat worsens damage in chemically treated hair, especially bleached and straightened hair.
1 citations
,
March 2025 in “Journal of Society of Cosmetic Chemists of Japan” BECD helps straighten wavy hair by reducing undulation.
Thermal straightening can damage ethnic hair and may pose health risks.
April 2025 in “BMC Chemistry” Thiadiazole chitosan conjugates improve hair manageability, moisture, and protection in conditioners.
8 citations
,
October 2014 in “Journal of analytical toxicology.” Chemical hair straightening significantly reduces detectable drug levels in hair.