Comparative Effects of Retinoic Acid or Glycolic Acid Vehiculated in Different Topical Formulations

Figure 2

Photomicrographs of hairless mice skin. Magnification: ×960, HE. Yellow stars represent nuclei of the basal cells and red rectangles represent spinous layers.

(a) Gel

(b) Gel + RA

(c) Gel + GA

(d) GC

(e) GC + RA

(f) GC + GA

(g) Cream

(h) Cream + RA

(i) Cream + GA