NaOH treatment improves hair strength and suitability for textiles.
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.
October 2025 in “Journal of the Korean Society of Cosmetology” Dandelion extract mist protects hair from heat damage and improves styling.
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.
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.
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.
April 2019 in “Digital Library of Theses and Dissertations (Universidade de São Paulo)” Hair straightening at pH 1.0 improves alignment but weakens hair more than pH 2.0.
Taking enzyme food and collagen together improves hair health in middle-aged women more than taking them separately.
Applying conditioner in the middle of a perm process reduces hair damage.
January 2012 in “Jounal of The Korean Society of cosmetology” Applying conditioner mid-treatment reduces hair damage during perms.
January 2012 in “한국미용학회지” Applying conditioner in the middle of a perm process reduces hair damage the most.
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.
September 2011 in “Daehan miyong hakoeji” Henna orange powder, especially with alkali, protects and colors hair better than oxidizing colorants.
December 2010 in “Journal of Oriental Medicine” Black bean, wheat, and rice bran extracts can improve hair growth and quality.
May 2009 in “International Journal of Cosmetic Science” Permanent waving damages hair protein and weakens hair, especially with repeated treatments using sodium thioglycolate.
January 2008 in “대한미용학회지” UV exposure severely damages hair, making it rough and weak.
Hair coloring and bleaching can permanently break down hair protein and temporarily change its properties.
March 2005 in “Journal of the American Academy of Dermatology” Adding amino acids to damaged hair can improve its strength and appearance.
Anti-keratin antibody from cow milk makes damaged hair stronger and less likely to break.
Coconut oil helps protect and improve damaged hair.
January 2020 in “한국미용학회지” Musa extracts protect hair from damage during chemical treatments.
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March 2025 in “Free Radical Biology and Medicine” Imbalanced redox dynamics cause skin aging by damaging fibroblasts and stem cells.
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January 2010 in “Journal of Oriental Medicine” Black bean, wheat, and rice bran extracts can boost hair growth and improve hair quality.