Quantifying Polymer Deposition on Hair Fibers by Microfluorometry

    July 2019 in “ Microscopy Today
    Anthony Ribaudo
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    TLDR Microfluorometry effectively measures how much polymer coats and penetrates hair, useful for evaluating hair products.
    The study demonstrated that microfluorometry is an effective method for measuring polymer deposition on hair fibers, with higher polymer concentrations resulting in greater fluorescent intensity. Twenty hair fibers were tested for each polymer concentration (0.1%, 0.01%, and 0.001%) and compared to a control group. The findings indicated not only surface deposition but also some penetration of the polymer into the hair cuticle, and diffusion experiments showed that polymers could reach the hair's core within 1.5 hours. This technique offers a valuable tool for the cosmetic industry to assess product efficacy and hair health.
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