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research Investigation of the damage on the outermost hair surface using ToF‐SIMS and XPS

25 citations , December 2011 in “Surface and interface analysis”

This study reports that hair damage from bleaching is associated with the oxidative cleavage of fatty acid thioester bonds, detectable by measuring the decrease in mass spectrometry peak at m / z 76.

research ToF‐SIMS characterization of the lipid layer on the hair surface. I: the damage caused by chemical treatments and UV radiation

23 citations , May 2010 in “Surface and interface analysis”

This study found that chemical treatments such as hair bleach and UV radiation significantly reduced the amount of 18-methyleicosanoic acid on the outer surface of human hair.

research ToF‐SIMS characterization of the lipid layer on the hair surface. II : Effect of the 18‐MEA lipid layer on surface hydrophobicity

19 citations , May 2010 in “Surface and interface analysis”

This study found that a conditioner treatment using 18-MEA combined with a specific cationic surfactant effectively restored hydrophobicity and reduced friction on damaged hair surfaces.

research Investigation of human hair using ToF-SIMS: From structural analysis to the identification of cosmetic residues

4 citations , April 2018 in “Journal of vacuum science and technology. B, Nanotechnology & microelectronics”

This study demonstrated the potential of a methodology combining ToF-SIMS and AFM to effectively analyze human hair structure and identify cosmetic residues, which can aid the cosmetic industry in product development.

research Mapping penetration of cosmetic compounds into hair fibers using time‐of‐flight secondary ion mass spectrometry (TOF‐SIMS)

3 citations , September 2005 in “International Journal of Cosmetic Science”

This study found that monounsaturated oils like olive oil penetrate hair fibers effectively, whereas polyunsaturated oils typically do not penetrate beyond the cuticle.

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community Dutasteride Isn't Working? Get a Scalp Biopsy NOW

in Finasteride/Dutasteride 19 upvotes 1 year ago

Dutasteride may not be effective for everyone due to underlying issues, suggesting scalp biopsies for further diagnosis. Users discuss using higher doses of dutasteride, topical treatments, minoxidil, and pyrilutamide for hair loss management.

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