While taking Acai Optimum dietary supplement, will sun exposure effect you negatively?

I have recently begin taking Acai Optimum dietary supplement as well as tanninng sessions on a daily basis. When i get out of the tanning bed, my legs are usually broken out and i itch all over. I have switched lotions numerous times, cleaned the beds with numerous cleaners and even tried plain vinegar and water. The only other thing that i can trace the allergic reactions back to would be the dietary supplement.