[Analysis Case] Evaluation of the Distribution of Hair Care Ingredients in Hair 1
Visualizing the penetration state of each component into the hair.
We investigated the penetration state of components under various immersion conditions by soaking unconditioned hair, specifically facial hair, in a conditioner or treatment. In the facial hair soaked in conditioner, it was observed that siloxanes penetrated to the hair cortex over time, while high fatty acids appeared to be lost. In the facial hair soaked in treatment, nitrogen-containing organic substances did not penetrate the hair cortex and were only distributed around the cuticle.
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Applications/Examples of results
Analysis of cosmetics.