dgreekstallionoud is the pure distilled oil from infected aquillaria trees, it is very very expensive and most "oud" fragrances have little or none of it in them. Real authentic oud smells like nothing you have ever experienced before in your life. There are some places you can get real (albeit low quality) oud for cheap on etsy but it's not usually worth buying as it usually just smells more like a field of cow shit than what you're probably looking for.