In Vitro Methodologies to Evaluate the Effects of Hair Care Products on Hair Fiber

January 2017 in “ Cosmetics ”

Robson Miranda da Gama, André Rolim Baby, Maria Valéria Robles Velasco

TLDR Different tests are used to see how hair care products affect hair, and choosing the right test is important for accurate results.

The document from January 3, 2017, reviews various in vitro methodologies used to evaluate the effects of hair care products on hair fibers. These methods include Scanning Electron Microscopy, Transmission Electron Microscopy, Atomic Force Microscopy, Optical Coherence Tomography, Infrared Spectroscopy, Raman Spectroscopy, Protein Loss, Electrophoresis, and assessments of color, brightness, thermal properties, mechanical resistance to combing, and elasticity. The review emphasizes that the choice of methodology should align with the specific hair property being evaluated, such as sensory characteristics, brightness, resistance to breakage, elasticity, and the integrity of the hair strand and cortex. It also highlights the importance of using accurate equipment to ensure reproducibility and ease of use in the analytical methods. The data obtained from these tests must be carefully analyzed to draw conclusive results about the efficacy of hair care products.

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