Liquid Brun is a good add, especially if you want the Althair DNA without dropping Althair money. It isn’t an exact 1:1 like content creators will say, especially on the opening, but it captures the Althair DNA really well in a way that satisfies that itch. I’d say it’s an 85% dupe, it lacks the refinement of Althair and feels like a cheaper knock off, but it is still a good add for any collection!