July 2025 in “International Journal of Cosmetic Science” A new 6-point scale reliably measures heat damage to hair from styling tools.
January 2010 in “SÖFW-Journal” A natural moisturizer can make hair stronger.
31 citations
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December 2012 in “British Journal of Dermatology” Korean women's hair thins, weakens, and greys with age, with mineral and sterol changes.
31 citations
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June 2010 in “Journal of dermatology” Hair bleaching causes significant damage to hair and skin.
13 citations
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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.
5 citations
,
October 2007 in “PubMed” Amino acids in conditioners improve hair strength, hydration, and color retention.
3 citations
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March 2013 in “Journal of the Society of Cosmetic Scientists of Korea” Transglutaminase can repair damaged hair, making it stronger and shinier.
3 citations
,
August 2008 in “PubMed” Repeated digital perming with sodium thioglycolate lotion significantly damages hair protein and structure.
3 citations
,
January 2002 in “Springer eBooks” Alkaline hair relaxers damage hair, but cationic and non-ionic polymers can help reduce this damage.
2 citations
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September 2010 in “Journal of the Korea Academia-Industrial cooperation Society” Using 2% collagen in perms reduces hair damage while keeping curls.
1 citations
,
January 2019 in “Journal of pharmacy & pharmacognosy research” The flavonoid-rich extract of Equisetum hyemale can help regrow hair in cases of alopecia.
1 citations
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January 2017 in “Ancient science of life/Ancient Science of Life” Vatika Enriched Coconut Hair Oil is safe and more effective than regular coconut oil for reducing hair fall and dandruff.
July 2026 in “DOAJ (DOAJ: Directory of Open Access Journals)” SesZenBio™ improves hair health and reduces hair loss effectively.
May 2026 in “Materials Today Bio” The nanocomplex protects hair from UV damage and strengthens it.
Placenderm® improves scalp elasticity and hair quality safely.
January 2026 in “International Journal of Peptide Research and Therapeutics” Collagen supplements improve hair health and are safe.
December 2025 in “Asian Journal of Beauty and Cosmetology” Soybean oil extract improves the condition of damaged hair.
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.
May 2025 in “Research Journal of Biotechnology” Diabetes can cause hair thinning, increased hair loss, and changes in hair growth phases.
February 2025 in “Brazilian Journal of Hair Health” The Brazilian candle flame technique can damage hair by melting the cuticle and exposing the cortex.
April 2023 in “Asia-pacific Journal of Convergent Research Interchange” Hair manicure improves the strength and condition of bleached hair.
January 2023 in “SSRN Electronic Journal” The fibroin-based formulation strengthens and repairs chemically damaged hair.
November 2022 in “International journal of trichology” Glyoxylic acid straighteners cause more protein loss but have similar hair strength effects as traditional alkaline straighteners.
The fermented mixture, including Sasa Borealis, improves scalp health and hair strength and shine.
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.
February 2021 in “Journal of the Korean Society of Cosmetology” Castor oil improves the texture of bleached hair by increasing its strength.
Micro-needling with growth factors and minoxidil improved hair growth in a balding man.
Hair can't be as strong as Rapunzel's because it's impractical to scale up due to defects.
June 2016 in “한국디자인문화학회지” UVA damages all hair types, especially permanently waved and colored hair.
September 2014 in “Daehan miyong hakoeji” Adding 2% glycerin or hyaluronic acid to permanent wave treatments reduces hair damage, with hyaluronic acid being more effective.