The friendly, no-frill bartenders of yore are being rapidly replaced by mixologists. What does that mean to you? Less therapy sessions, and more cocktails that resemble science experiments.

While we're in favor of dramatic cocktails with as much flavor as fanfare, its sometimes unnerving to see things that would be at home on the periodic table of elements making their way into our drinks. Get on your bar keep's level: 13 Unusual Ingredients Bartenders Use in Cocktails, and Why.

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