Nothing ships without its certificate.

For years we sold supplements someone else manufactured. They worked. They sold well. And still, every time a customer wrote in asking what exactly was inside the bottle, we had to forward the question to a third party and wait.

That wait is where Vitheris came from. If you are going to put your name on a label and your face in an ad, you have to be able to answer without calling anyone. You have to own the answer.

If you can't answer what's inside the bottle, it isn't your product. It's someone else's.

So we built the plant. Not to manufacture cheaper — in fact we manufacture more expensively than most, because we don't skip third-party testing even when the batch looks perfect. We built it so we would never have to take anyone's word for it.

Today Vitheris manufactures its own formulas and those of a small group of brands that chose the same thing. We are still few, and deliberately so: we would rather have twenty clients who understand why a batch takes two extra weeks than two hundred who never ask.