There are various Tan Accelerators available, which can be used to enhance a tan by promoting a deeper tan or reacting with your skin pigments to produce a quicker result. Lotions often include various ingredients claiming to benefit the skin e.g. anti wrinkle agents and moisturising agents. Please check the ingredients if you purchase a tan accelerator. A good Lotion will enhance for tan and an inbuilt moisturiser or separate moisturiser for after tanning application is a good idea.
NEVER USE A TAN ACCELERATOR EXCEPT FOR UNDER A SUNBED.
Also never use a sun block under a sunbed it will slow down the tanning process considerably.