Lizards shed their skin as they grow, typically in one piece. This process is called ecdysis. To assist your lizard in shedding its skin, you can ensure proper humidity levels in their enclosure, provide a rough surface, such as a branch or rock, for them to rub against, and offer a shallow bowl of water for soaking. It's important not to peel or pull off the old skin yourself, as this can cause injury to your lizard. Simply provide the right environmental conditions and let your lizard naturally shed its skin.