Dynamic mode AFM of human hair

The study of human hair surface is of great interest for the cosmetic industry. The hair surface structure is important for the diffusion of compounds, such as cosmetic products. Polymers are usually used in hair cosmetics for the improvement of the hair surface. They adhere to the hair surface by van der Waals type forces.

Several techniques have been proposed for the evaluation of the morphologic changes in the hair surface after treatments with solutions containing polymers [1-3]. Among the most used ones is AFM. The measurements on has been performed with an easyScan2 Large Scan AFM operated in dynamic mode. The surface of the hair and its distinctive structure is clearly visible.

40µm x 40µm scan range; 3µm z range
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