The best prostate toys are made from body-safe materials, such as silicone, stainless steel, or medical-grade plastic. Silicone is a popular choice because it's soft, flexible, and non-porous, making it easy to clean and comfortable to use. Stainless steel toys offer a firmer, weightier experience, ideal for more advanced users. Always avoid toys made from materials like jelly or rubber that may contain harmful chemicals. Ensure the toy is hypoallergenic, phthalate-free, and compatible with water-based lubes for maximum safety and comfort.