May 2010 in “Europe PMC (PubMed Central)” Near-infrared probes can safely and effectively image cysteine protease activity for disease diagnosis.
13 citations
,
July 2017 in “Annals of Oncology” Chemotherapy toxicity might be reduced by using DNA neutralizing agents.
9 citations
,
June 1947 in “Analytical Chemistry” Cold waving solutions quickly reduce cystine to cysteine in hair.
2 citations
,
January 1987 in “Acta Agriculturae Scandinavica” Certain chelators lighten mink skin and hair, increase skin elasticity, and disrupt hair growth without affecting fur quality.
13 citations
,
March 2019 in “Journal of cosmetic dermatology” Heat damages hair, with Asian hair losing more protein than Caucasian hair.
January 2011 in “Journal of Society of Cosmetic Chemists of Japan” 18-MEA and SPDA can restore damaged hair's smoothness and reduce frizz.
April 2024 in “JMR. Journal of molecular recognition/Journal of molecular recognition” Hydrophilic carbon dots cause one protein to clump more and prevent another from clumping.
August 2025 in “Applied Sciences” Peroxide-rich plasma-activated water is gentler on hair than nitrate-rich formulations.
1 citations
,
January 2013 Depilatories use chemicals to weaken hair for easy removal.
4 citations
,
April 1955 in “Textile Research Journal” The effectiveness of reducing agents on hair fibers depends on their electrode potentials.
13 citations
,
September 2014 in “Journal of photochemistry and photobiology. B, Biology” UV radiation increases protein loss from hair and reduces hair protein quality.
Hair fibers degrade and change color in very basic water.
4 citations
,
May 2014 in “PubMed” Monoethanolamine-based hair colorants can cause more damage to hair than ammonia-based ones.
87 citations
,
January 1996 in “Journal of cellular biochemistry” Over 30 potential cancer prevention treatments are being tested, with some showing promise in early research.
February 2025 in “International Journal of Cosmetic Science” Protein carbonylation is a sensitive marker for oxidative damage in hair, especially from light exposure.
January 1990 in “Springer eBooks” Some chemicals can permanently or temporarily remove color from skin and hair, which can be distressing and is not well-regulated in cosmetics.
8 citations
,
August 1993 in “Colloid & Polymer Science” The observed "toughening" in keratin was actually due to water evaporation, not a real change in keratin.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” Oxidative dyes damage hair more than semi-permanent dyes, but new technologies help protect hair while coloring.
6 citations
,
October 2003 in “Journal of applied polymer science” A new method using poly(ethylene imine) improves hair dyeing at lower temperatures with better color retention.
March 2026 in “Bioconjugate Chemistry” Peptide-based PROTACs show promise in targeting hard-to-treat proteins, especially for cancer therapy.
NaOH treatment improves hair strength and suitability for textiles.
8 citations
,
March 2020 in “Colloids and surfaces. B, Biointerfaces” Heating hair proteins changes their structure and may improve their blood clotting ability.
2 citations
,
December 2020 in “Developmental cell” Chemotherapy drugs can cause abnormal growth and changes in healthy skin and gland cells.
March 2026 in “Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials” Bleaching and UV exposure significantly damage hair.
3 citations
,
January 2021 in “ScienceAsia” Using an enzyme and keratin treatment can significantly repair and strengthen damaged hair.
13 citations
,
March 2017 in “Skin Research and Technology” Formaldehyde damages curly hair more than glyoxylic acid.
39 citations
,
August 1998 in “FEBS Letters” Two new enzymes, PAD-R11 and PAD-R4, were cloned and showed activity, with PAD-R11 resembling epidermal enzymes.
January 2026 in “International Journal of Biological Macromolecules” Small KP peptide improves hair without reducing agents, while larger proteins need them for better results.
May 2019 in “Asian Journal of Chemistry” Finasteride forms three new products under acidic stress.
February 2025 in “Biomimetics” The shampoo straightens hair while keeping it healthy and less damaged.