December 2025 in “The American Journal of Medical Sciences and Pharmaceutical Research” Ultrasonic and infrared treatments can improve hair strength and appearance with minimal damage.
Caffeine therapy helped hair recovery after chemical and traction damage.
April 2025 in “Pharmaceuticals” APA is a promising new compound for repairing damaged hair, outperforming Olaplex® in strength and elasticity.
February 2025 in “Biomimetics” The shampoo straightens hair while keeping it healthy and less damaged.
August 2024 in “Cosmetics” K18® and Olaplex® both effectively repair bleached hair, improving its strength, smoothness, and overall health.
January 2024 in “International Journal of Cosmetic Science” A new method using 1,4-n-butylene dimaleate effectively repairs and strengthens damaged hair.
October 2023 in “Journal of Molecular Liquids” A new method using imidazole-based liquids efficiently extracts keratin from yak hair.
Hidradenitis Suppurativa has genetic links, with certain gene mutations more common in patients and a third of cases having a family history.
January 2014 in “Sen i Gakkaishi” Liposome-encapsulated thioglycolic acid improves hair perming effectiveness and durability.
January 2013 in “프로그램북(구 초록집)” Hair perms or treatments seem safe to use up to 3 to 4 times during pregnancy.
January 2008 in “Chinese Journal of Spectroscopy Laboratory” Cysteine formation on hair indicates damage, best detected at pH 4.5.
45 citations
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December 2006 in “Biopolymers” Permanent waving weakens hair by altering its protein structure.
18 citations
,
January 2018 in “Advances in experimental medicine and biology” Hair keratins evolved from ancient proteins, diversifying through gene changes, crucial for forming claws and later hair in mammals.
24 citations
,
January 2009 in “International Journal of Trichology” Sunlight exposure ages hair, making it brittle, stiff, and dry.
6 citations
,
April 2005 in “Journal of dermatological science” The study found nine new hair protein genes in human hair follicles.
1 citations
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January 2025 in “International Journal of Cosmetic Science” Age-related hair curvature increases due to internal structural changes from grooming.
1 citations
,
July 2024 in “International Journal of Dermatology Venereology and Leprosy Sciences” Cysteine strengthens hair, and glutamine fuels hair growth.
30 citations
,
September 2018 in “International Journal of Cosmetic Science” Bleaching hair causes severe structural and chemical damage, including protein loss and oxidation.
8 citations
,
February 1968 in “Australian Journal of Zoology” The southern elephant seal's skin layer helps waterproof the skin by being tightly connected to hair shafts.
53 citations
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March 2006 in “Biopolymers” TTD hair is brittle due to fewer sulfur amino acids and unstable disulfide bonds.
2 citations
,
January 2015 in “Sen'i Gakkaishi” Washing permed hair after using thioglycolic acid helps reform strong bonds, making hair stronger.
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 2013 in “Transactions of the Materials Research Society of Japan” CMADK reduces hair damage from bleaching and permanent waving.
8 citations
,
January 2009 in “Transactions of the Materials Research Society of Japan” Water-soluble wool keratin can protect human hair from damage during treatments.
9 citations
,
August 2005 in “Experimental Dermatology” Modified pep7, named EPM peptide, effectively promotes hair growth at low concentrations and works well with minoxidil.
PDGF signaling is crucial for cell development, wound healing, and fluid regulation in the body.
8 citations
,
January 2017 in “Journal of Biological Chemistry” Astrotactin-2 is cleaved in a specific way that helps understand its maturation.
43 citations
,
July 1994 in “Journal of Cell Science” Cross-linked proteins help maintain the structure of hair, feathers, and hagfish teeth.
37 citations
,
October 2015 in “PeerJ” Perming significantly changes hair's molecular structure, while shampoo and conditioner do not.
17 citations
,
January 2016 in “Journal of Drug Delivery” PEG and keratin scaffolds can effectively deliver protein drugs by controlling release based on pH levels.