Assessing the Impact of Mechanical Damage on Full-Thickness Porcine and Human Skin Using an In Vitro Approach

Figure 7

Histological analysis by optical microscopy (haematoxylin and eosin stain), comparison between a healthy human skin (a) and microneedles application with black ink (b), shaving human skin with a razor (c), and rotating brush and a gel (d). Scale bar: 100 μm; SC: stratum corneum, Ep.: epidermis, and De.: dermis.

(a)

(b)

(c)

(d)