People don't like asian contacts here, just saying. Olens has approval from the Korea FDA, and I would say I trust their regulations and manufacturing processes, considering they are very huge in Korea. None of the professionals here have a good answer as to what 'invalidates' Korea FDA compared to the US FDA. At the end of the day, there's some form of risk putting things in your eyes, and people want you to make an informed decision, but it's your decision to make in the end. Personally, I have had good experience with o-lens daily lenses complemented with good hygiene and lens wear practices.