Assessment of Styling Performance in Hair Gels and Hair Sprays by Means of a New Two-Point Stiffness Test

    October 2010 in “ PubMed ”
    P. Hoessel, Solveig Riemann, Robert Knebl, Jens Schroeder, Gerd Schuh, Catalina Castillo
    TLDR The new stiffness test works well for gels but not for sprays.
    The study developed and validated a new two-point bending stiffness method to assess the performance of hair styling gels and sprays on flat hair strands. Various commercially available thickeners and styling polymers were tested. The new method showed a strong correlation with sensory assessments for styling gels but not for hair sprays. The discrepancy was attributed to differences in polymer/hair composites and the alignment of hair fibers in the test. This alignment was crucial for reproducible results.
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