In an effort to stretch out the life of my bottle of Alt-Innsbruck, I had been adding some Thayer's unscented to the bottle. I have had no complaints, and the scent of the AI was still excellent. Today after shaving, I accidentally had my bottle of cucumber Thayer's on the counter. Without thinking, I poured it in. Immediately, the bottle went milky white, and the smell of the AI lost some of its pungent tobacco. A disappointment. So... watch out, would-be alchemists.