There are a few possible reasons why you’re not tanning on the sunbed. It could be that you’re not using a high enough level bed, or that you’re not spending enough time in the bed. Ensure you’re using a tanning accelerator too. Alternatively, it could be that your skin is not reacting well to the UV rays and you’re getting sunburn instead of a tan. If this is the case, you should stop using the sunbed so much and pace yourself a little more.