13 citations
,
March 2006 in “International Journal of Cosmetic Science” The study found that a polymer treatment changes the charge on hair surfaces, making bleached hair smoother and less porous.
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.
30 citations
,
January 2009 in “The scientific world journal/TheScientificWorldjournal” Hair is hard to dissolve because of its complex proteins, but certain solvents that break specific bonds and hydrate can do it.
April 2019 in “Journal of Investigative Dermatology” Low-level laser therapy helps hair growth and reduces hair loss with few side effects.
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.
October 2024 in “UNESP Institutional Repository (São Paulo State University)” Straightening and dyeing damage hair structure.
January 2012 in “Human health handbooks” Low-level light therapy is FDA-approved for male pattern hair loss, increases hair count and strength, and is considered safe for use.
4 citations
,
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.
September 2025 in “Sahel Journal of Life Sciences FUDMA” Chemical hair straighteners can severely damage hair and scalp with repeated use.
Stretching-setting treatment works for wool and human hair using specific equipment and methods.
4 citations
,
May 2014 in “Pharmaceutical Biology” Glycyrrhizic acid from sweet licorice can effectively remove hair without skin irritation.
Thermal straightening can damage ethnic hair and may pose health risks.
February 2025 in “Biomimetics” The shampoo straightens hair while keeping it healthy and less damaged.
4 citations
,
April 1955 in “Textile Research Journal” The effectiveness of reducing agents on hair fibers depends on their electrode potentials.
July 2007 in “International Journal of Cosmetic Science” The new polymer improves dyed hair's color, moisture, shine, and smoothness.
October 1997 in “Dermatologic Surgery” The Epilight Hair Removal System is effective for temporary hair removal with few side effects, but more research is needed to confirm its safety and long-term results.
73 citations
,
April 1999 in “Dermatologic Clinics” Lasers and light sources can effectively remove hair, work best on fair skin with dark hair, and usually need multiple treatments.
2 citations
,
January 2000 Lasers are effective for hair removal, especially for conditions like excessive hair growth.
November 2024 in “Biophysical Chemistry” Hair structure changes immediately during perm treatment, with initial damage partially restored later.
September 2023 in “Jurnal MIPA (edisi elektronik)” Lime extract can be used to make a stable hair tonic with beneficial compounds.
Laser hair removal works well for light skin with dark hair but needs caution for darker skin.
9 citations
,
June 1947 in “Analytical Chemistry” Cold waving solutions quickly reduce cystine to cysteine in hair.
49 citations
,
January 1972 in “Biochimica et Biophysica Acta (BBA) - Protein Structure”
January 2009 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas” Lasers and light treatments are now the most common ways to remove hair.
5 citations
,
November 2014 in “Hair transplant forum international” Low Level Laser Therapy can promote hair growth.
75 citations
,
September 2015 in “Acta biomaterialia” Alkylation of human hair keratin allows for adjustable drug release rates in hydrogels for medical use.
82 citations
,
May 2005 in “Dermatologic therapy” Laser hair removal has advanced to effectively reduce hair for various skin types and hair colors.
29 citations
,
August 2011 in “PubMed” Polymeric pretreatments can significantly reduce hair breakage and damage from hot flat irons.
2 citations
,
August 1987 in “Analytical Biochemistry” A new method isolated previously undetected hair proteins rich in glycine and tyrosine.
1 citations
,
August 1984 in “Therapeutische Umschau. Revue thérapeutique” Permanent hair removal with lasers is the most promising treatment for excessive hair growth.