The study of human hair surface is of great interest for the cosmetic
science. 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. Among the
most used ones is AFM.
Figure 1.Surface of a human hair. 40µm x 40µm scan range;
3µm z range
easyScan2 Large Scan 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.