As an AI language model, I don't have access to real-time information about the specific shower gels used by celebrities. However, it is worth noting that celebrities often have access to a wide range of luxury and high-end skincare products. Some celebrities may prefer using organic or natural shower gels that align with clean beauty principles, while others may opt for products that are more mainstream or have specific fragrances. Ultimately, the choice of shower gel varies greatly among individuals, including celebrities, based on personal preference, skin type, and specific needs.