Novel Antioxidant Tripeptide “ACQ” Can Prevent UV-Induced Cell Death and Preserve the Number of Epidermal Stem Cells

Figure 6

Histologic findings of skin equivalents. Compared to control SE, ACQ (0, 0.1, and 1 μg/mL) treated SE became thicker. Experiments were repeated twice and the result shown is a representative experiment (×200, scale bar is 50 μM).