Ive sampled both and out of the two i prefer moroccan tan.
Nouvatan feels sticky for so long after application even feels wet and clients were taking half an hour before wanting to put clothes on and even then they didnt feel great. Colour was ok, fade off was ok but all in all just an ok tan that took ages to feel dry.
Moroccan tan i was disappointed to start with as it said 2 hour tan, i washed it off after 3 hours and was white!! However when i woke up in morning i was a nice brown, legs were very brown, lasted quite well and fades lovely
For me though i love my la tan gold, you feel dry straight away, great colour, fades nicely, doesnt come off on clothes or bedding and from a price point its amazing value for money....i can have two spray tan clients within half an hour of each other as they are literally tanned, dry and dressed and out the door