Don't worry lots of people struggle with the name.
Purition is a 'portmanteau' of the words PURE and NUTRITION.
It sounded like a good idea at the time, but you are not alone in thinking it's called Puritan or Puriton.
Purition is a bit of a mouthful, not unlike the product!
Pure + Nutrition = Purition
We pronounce it Pure-ish-on
Try some samples:
Nutrition at a glance: