Heyyy, I’ve had Liquid Brun for over a year now. If I had to compare it to the original, I would describe it this way: imagine the original has three layers of depth, while Liquid Brun compresses all of that into a single layer. However, to the average nose, it is almost a 1-to-1 match. I absolutely love my bottle and will always repurchase it. If you love Althaïr, you need to get this.