What brand of tanning lotion is sold at Planet Fitness?

The brand of tanning lotion sold at Planet Fitness is Devoted Creations. This brand is well-regarded for its quality and effectiveness in enhancing the tanning experience, which aligns with Planet Fitness's focus on providing members with a comprehensive fitness experience, including access to tanning products. Devoted Creations offers a range of lotions designed to hydrate the skin, enhance tanning results, and provide additional skin care benefits, making it a suitable choice for gym-goers who want to achieve and maintain a tan.

The other brands mentioned might be popular in the tanning industry, but they do not represent the specific offerings at Planet Fitness, where the focus is on providing products that meet the needs and preferences of its members seamlessly. Thus, Devoted Creations stands out as the correct answer.