An extract from the heartwood of the Palo Santo tree, guaiac is a fragrant material with a mystical quality- warm, woodsy, and mysterious. Combined with the encapsulating smoothness of Iso E Super, it takes on an almost whiskey-like depth, with creamy, smoky, and aromatic tones that embrace the wearer in a cozy, yet sensual cloud. The warmest and deepest of the M01 line thus far, it's a must try for lovers of all things woodsy.