81 citations
,
December 2007 in “Acta materialia” AFM helped show how hair changes under tension and the effects of damage and conditioner.
36 citations
,
April 2013 in “Cell and Tissue Research” Bone-marrow and epidermal stem cells help heal wounds differently, with bone-marrow cells aiding in blood vessel formation and epidermal cells in hair growth.
34 citations
,
October 1982 in “Journal of applied polymer science” Moisture content significantly affects how human hair breaks.
28 citations
,
May 1998 in “Skin Research and Technology” Scalp flaps are stiffer than skin from other body areas, which helps in planning reconstructive and cosmetic head surgeries.
8 citations
,
November 2022 in “International Journal of Cosmetic Science” Human hair varies widely and should be classified by curl type rather than race.
4 citations
,
April 2019 in “Cosmetics” Hair stiffness is higher when it has more para-like cortical cells.
November 2023 in “Global journal of medical research” Understanding the properties of hyaluronic acid helps improve its use in facial aging treatments.
25 citations
,
May 2020 in “Progress in Organic Coatings” Castor oil-based polyurethanes are promising for making safe, strong-performing, eco-friendly hair-styling products.
13 citations
,
May 2016 in “International journal of biological macromolecules” Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.
11 citations
,
April 2022 in “Biophysical Journal” Disulfide bonds in keratin fibers break more easily under stress, especially when wet, affecting fiber strength.
January 2025 in “International Journal of Cosmetic Science” Citric acid strengthens and improves damaged hair.
13 citations
,
March 2017 in “Skin Research and Technology” Formaldehyde damages curly hair more than glyoxylic acid.
8 citations
,
July 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Curly hair is mechanically different from straight hair and may need new testing methods.
7 citations
,
September 2020 in “International Journal of Cosmetic Science” Different sizes of keratin peptides can strengthen hair, with smaller ones possibly increasing volume and larger ones repairing damage.
April 2025 in “Pharmaceuticals” APA is a promising new compound for repairing damaged hair, outperforming Olaplex® in strength and elasticity.
8 citations
,
April 2017 in “Journal of The Royal Society Interface” Giant axonal neuropathy changes the structure of keratin in human hair.
December 2025 in “Cosmetics” The bio-based complex effectively repairs and protects chemically damaged hair.
September 2024 in “Heliyon” Repeated hair dyeing significantly damages hair.
August 2024 in “Cosmetics” K18® and Olaplex® both effectively repair bleached hair, improving its strength, smoothness, and overall health.
November 2023 in “Cosmetics” Rice derivatives in conditioners protect and improve hair health.
May 2024 in “Ultramicroscopy” Atomic Force Microscopy is a more accurate way to assess hair damage and the effect of cosmetic treatments.
17 citations
,
July 2018 in “International Journal of Cosmetic Science” Keratin-based particles safely improve hair strength, smoothness, and heat protection.
30 citations
,
June 2024 in “Scientific Reports” The hydrogel shows promise for wound healing due to its strong mechanical, antimicrobial, and antioxidant properties.
2 citations
,
March 2005 in “International Journal of Cosmetic Science” Human hair structure varies by ethnicity, and certain treatments can improve hair condition and appearance.
March 2005 in “International Journal of Cosmetic Science” A new method helps understand hair shine and various products improve hair care.
3 citations
,
December 2021 in “Materials today communications” A new film made from human hair supports skin cell growth better than collagen.
A natural, eco-friendly treatment using casein and tannic acid strengthens hair by 21% while keeping it elastic.
October 2024 in “Applied Sciences” Cell growth improved the strength of 3D bioprinted structures.
328 citations
,
November 2020 in “Nature Materials” Hydrogel scaffolds can help wounds heal better and grow hair.
54 citations
,
May 2021 in “International Journal of Molecular Sciences” Advances in mechanobiology and immunology could lead to scarless wound healing.