Research on aloe vera's potential anti-cancer properties is still in its early stages. Some studies suggest that compounds found in aloe vera, such as aloin and aloe-emodin, may have anti-cancer effects. These compounds are thought to inhibit the growth of cancer cells and induce apoptosis (programmed cell death). However, these findings are primarily based on in vitro (test tube) and animal studies, and more clinical trials are needed to confirm these effects in humans.