Thymoquinone Oil Quality

I get this question almost every day. Someone holds up a bottle and asks: "Is this real? How can I tell?"

I understand the confusion. I've been there myself. In fact, that confusion is exactly why I started Green Fields Oils twenty years ago. I was searching for pure black seed oil for my son, and everything I found was wrong. Not a little wrong. Completely wrong.

So let me share what twenty years of making oil has taught me. Not what the marketing says. Not what the labels claim. What I've learned by actually pressing seeds, watching the oil flow, and testing batch after batch.

What Color Should It Be?

Here's the first thing most people get wrong: black seed oil is not black.

I know, the name is confusing. The seed itself is black on the outside—small, triangular, with that distinctive shape. But inside? The seed is white. Just like an olive. Olives can be black or green on the outside, but the oil inside is always some shade of yellow or gold.

Real black seed oil ranges from yellow