Apply very thin layer of clear rubber base on the nail, cure in the lamp for 30 sec.
Apply BB gel in self-levelling (overlay ) technique each finger separate, do not apply on all 5 nails in the same time, each nail need to be cured separately, cure for 20 sec each finger and after you apply on all 5 fingers put whole hand in the lamp for extra 1 min.
Apply colour gel ( gel polish) cure for 30 sec each nail.
Apply top coat, cure for 1 min.
Make sure no product on the skin, if it is remove it with a file.